[Federal Register Volume 83, Number 6 (Tuesday, January 9, 2018)]
[Rules and Regulations]
[Pages 1098-1172]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-28423]



[[Page 1097]]

Vol. 83

Tuesday,

No. 6

January 9, 2018

Part II





Environmental Protection Agency





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40 CFR Part 81





Air Quality Designations for the 2010 Sulfur Dioxide (SO2) Primary 
National Ambient Air Quality Standard--Round 3; Final Rule

Federal Register / Vol. 83 , No. 6 / Tuesday, January 9, 2018 / Rules 
and Regulations

[[Page 1098]]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 81

[EPA-HQ-OAR-2017-0003; FRL-9972-73-OAR]


Air Quality Designations for the 2010 Sulfur Dioxide (SO2) 
Primary National Ambient Air Quality Standard--Round 3

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This final rule establishes the initial air quality 
designations for certain areas in the United States (U.S.) for the 2010 
sulfur dioxide (SO<INF>2</INF>) primary National Ambient Air Quality 
Standard (NAAQS). The Environmental Protection Agency (EPA) is 
designating the areas as either Nonattainment, Attainment/
Unclassifiable, or Unclassifiable. The designations are based on 
application of the EPA's nationwide analytical approach and technical 
analysis, including evaluation of monitoring data and air quality 
modeling, to determine the appropriate designation based on the weight 
of evidence for each area. The Clean Air Act (CAA or Act) directs areas 
designated Nonattainment by this rule to undertake certain planning and 
pollution control activities to attain the SO<INF>2</INF> NAAQS as 
expeditiously as practicable. This is the third of four expected sets 
of actions to designate areas of the U.S. for the 2010 SO<INF>2</INF> 
NAAQS.

DATES: The final rule is effective on April 9, 2018.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-HQ-OAR-2017-0003. All documents in the docket are 
listed in the index at http://www.regulations.gov website. Although 
listed in the index, some information is not publicly available, e.g., 
Confidential Business Information or other information whose disclosure 
is restricted by statute. Certain other material, such as copyrighted 
material, is not placed on the internet and will be publicly available 
only in hard copy form. Publicly available docket materials are 
available either electronically in the docket or in hard copy at the 
Docket, WJC West Building, Room 3334, 1301 Constitution Avenue NW, 
Washington, DC 20004. The hours of operation at the EPA Docket Center 
are 8:30 a.m.-4:30 p.m., Monday-Friday. The telephone number for the 
Public Reading Room is (202) 566-1744. Air dispersion modeling input 
and output files are too large to post in the docket or on the website 
and must be requested from the EPA Docket Office or the Regional office 
contacts listed in the FURTHER INFORMATION section.
    In addition, the EPA has established a website for the initial 
SO<INF>2</INF> designations rulemakings at: https://www.epa.gov/sulfur-dioxide-designations. The website includes the EPA's final 
SO<INF>2</INF> designations, as well as state and tribal recommendation 
letters, the EPA's modification letters, technical support documents, 
responses to comments and other related technical information.

FOR FURTHER INFORMATION CONTACT: For general questions concerning this 
action, please contact Liz Etchells, U.S. EPA, Office of Air Quality 
Planning and Standards, Air Quality Policy Division, C539-01, Research 
Triangle Park, NC 27709, telephone (919) 541-0253, email at 
<a href="/cdn-cgi/l/email-protection#c2a7b6a1aaa7aeaeb1eca7aeabb8a3a0a7b6aa82a7b2a3eca5adb4"><span class="__cf_email__" data-cfemail="066372656e636a6a7528636a6f7c676463726e4663766728616970">[email protected]</span></a>. The EPA contacts listed at the beginning of 
the Supplementary Information can answer questions regarding areas in a 
particular EPA Regional office.

SUPPLEMENTARY INFORMATION: 
    U.S. EPA Regional Office Contacts:
    Region I--Leiran Biton, telephone (617) 918-1267, email at 
<a href="/cdn-cgi/l/email-protection#315358455e5f1f5d545843505f715441501f565e47"><span class="__cf_email__" data-cfemail="45272c312a2b6b29202c37242b052035246b222a33">[email protected]</span></a>.
    Region II--Ken Fradkin, telephone (212) 637-3702, email at 
<a href="/cdn-cgi/l/email-protection#54322635303f3d3a7a3f313a3a31203c143124357a333b22"><span class="__cf_email__" data-cfemail="a2c4d0c3c6c9cbcc8cc9c7ccccc7d6cae2c7d2c38cc5cdd4">[email protected]</span></a>.
    Region III--Ruth Knapp, telephone (215) 814-2191, email at 
<a href="/cdn-cgi/l/email-protection#0e65606f7e7e207c7b7a664e6b7e6f20696178"><span class="__cf_email__" data-cfemail="482326293838663a3d3c20082d3829662f273e">[email protected]</span></a>.
    Region IV--Twunjala Bradley, telephone (404) 562-9352, email at 
<a href="/cdn-cgi/l/email-protection#fc9e8e9d98909985d2888b8992969d909dbc998c9dd29b938a"><span class="__cf_email__" data-cfemail="543626353038312d7a2023213a3e353835143124357a333b22">[email protected]</span></a>.
    Region V--John Summerhays, telephone (312) 886-6067, email at 
<a href="/cdn-cgi/l/email-protection#e695938b8b83948e879f95c88c898e88a6839687c8818990"><span class="__cf_email__" data-cfemail="7201071f1f17001a130b015c181d1a1c321702135c151d04">[email protected]</span></a>.
    Region VI--Bob Imhoff, telephone (214) 665-7262, email at 
<a href="/cdn-cgi/l/email-protection#dbb2b6b3b4bdbdf5a9b4b9bea9af9bbeabbaf5bcb4ad"><span class="__cf_email__" data-cfemail="7c151114131a1a520e131e190e083c190c1d521b130a">[email protected]</span></a>.
    Region VII--David Peter, telephone (913) 551-7397, email at 
<a href="/cdn-cgi/l/email-protection#6313061706114d0702150a07230613024d040c15"><span class="__cf_email__" data-cfemail="0c7c6978697e22686d7a65684c697c6d226b637a">[email protected]</span></a>.
    Region VIII--Adam Clark, telephone (303) 312-7104, email at 
<a href="/cdn-cgi/l/email-protection#e3808f829188cd8287828ea3869382cd848c95"><span class="__cf_email__" data-cfemail="e1828d80938acf8085808ca1849180cf868e97">[email protected]</span></a>.
    Region IX--Anita Lee, telephone (415) 972-3958, email at 
<a href="/cdn-cgi/l/email-protection#b1ddd4d49fd0dfd8c5d0f1d4c1d09fd6dec7"><span class="__cf_email__" data-cfemail="d7bbb2b2f9b6b9bea3b697b2a7b6f9b0b8a1">[email protected]</span></a>.
    Region X--John Chi, telephone (206) 553-1185, email at 
<a href="/cdn-cgi/l/email-protection#46252e2f682c292e280623362768212930"><span class="__cf_email__" data-cfemail="25464d4c0b4f4a4d4b654055440b424a53">[email protected]</span></a>.
    The public may inspect the recommendations from the states, 
territories and tribes, our recent letters notifying the affected 
states, territories, and tribes of our intended designations, and area-
specific technical support information at the following locations:

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            Regional offices                          States
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Dave Conroy, Chief, Air Programs         Connecticut, Maine,
 Branch, EPA New England, 5 Post Office   Massachusetts, New Hampshire,
 Square, Suite 100, Boston, MA 02109-     Rhode Island and Vermont.
 3912, (617) 918-1661.
Richard Ruvo, Chief, Air Programs        New Jersey, New York, Puerto
 Branch, EPA Region II, 290 Broadway,     Rico and Virgin Islands.
 25th Floor, New York, NY 10007-1866,
 (212) 637-4014.
Maria A. Pino, Acting Associate          Delaware, District of Columbia,
 Director, Office of Air Program          Maryland, Pennsylvania,
 Planning, EPA Region III, 1650 Arch      Virginia and West Virginia.
 Street, Philadelphia, PA 19103-2187,
 (215) 814-2181.
R. Scott Davis, Chief, Air Planning and  Alabama, Florida, Georgia,
 Implementation Branch, EPA Region IV,    Kentucky, Mississippi, North
 Sam Nunn Atlanta Federal Center, 61      Carolina, South Carolina and
 Forsyth, Street, SW, 12th Floor,         Tennessee.
 Atlanta, GA 30303, (404) 562-9127.
John Mooney, Chief, Air Programs         Illinois, Indiana, Michigan,
 Branch, EPA Region V, 77 West Jackson    Minnesota, Ohio and Wisconsin.
 Street, Chicago, IL 60604, (312) 886-
 6043.
Alan Shar, Acting Chief, Air Planning    Arkansas, Louisiana, New
 Section, EPA Region VI, 1445 Ross        Mexico, Oklahoma and Texas.
 Avenue, Dallas, TX 75202, (214) 665-
 6691.
Mike Jay, Chief, Air Programs Branch,    Iowa, Kansas, Missouri and
 EPA Region VII, 11201 Renner Blvd.,      Nebraska.
 Lenexa, KS 66129, (913) 551-7460.
Monica Morales, Air Program Director,    Colorado, Montana, North
 EPA Region VIII, 1595 Wynkoop Street,    Dakota, South Dakota, Utah and
 Denver, CO 80202-1129, (303) 312-6936.   Wyoming.
Anita Lee, Air Planning Office, EPA      American Samoa, Arizona,
 Region IX, 75 Hawthorne Street, San      California, Guam, Hawaii,
 Francisco, CA 94105, (415) 972-3958.     Nevada, Northern Mariana
                                          Islands, Navajo Nation and the
                                          Hopi Tribe.

[[Page 1099]]

 
Debra Suzuki, Manager, State and Tribal  Alaska, Idaho, Oregon and
 Air Programs, EPA Region X, Office of    Washington.
 Air, Waste, and Toxics, Mail Code OAQ-
 107, 1200 Sixth Avenue, Seattle, WA
 98101, (206) 553-0985.
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    The information can also be reviewed online at https://www.epa.gov/sulfur-dioxide-designations and in the public docket for these 
SO<INF>2</INF> designations at https://www.regulations.gov under Docket 
ID No. EPA-HQ-OAR-2017-0003.

Table of Contents

    The following is an outline of the Preamble.

I. Preamble Glossary of Terms and Acronyms
II. What is the purpose of this action?
III. What is the 2010 SO<INF>2</INF> NAAQS and what are the health 
concerns that it addresses?
IV. What are the CAA requirements for air quality designations and 
what action has the EPA taken to meet these requirements?
V. What guidance did the EPA issue and how did the EPA apply the 
statutory requirements and applicable guidance to determine area 
designations and boundaries?
VI. What air quality information has the EPA used for these 
designations?
VII. How do the Round 3 designations affect Indian country?
VIII. Where can I find information forming the basis for this rule 
and exchanges between the EPA, states and tribes related to this 
rule?
IX. Environmental Justice Concerns
X. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review and 
Executive Order 13563: Improving Regulation and Regulatory Review
    B. Executive Order 13771: Reducing Regulations and Controlling 
Regulatory Costs
    C. Paperwork Reduction Act (PRA)
    D. Regulatory Flexibility Act (RFA)
    E. Unfunded Mandates Reform Act (UMRA)
    F. Executive Order 13132: Federalism
    G. Executive Order 13175: Consultation and Coordination With 
Indian Tribal Government
    H. Executive Order 13045: Protection of Children From 
Environmental Health and Safety Risks
    I. Executive Order 13211: Actions That Significantly Affect 
Energy Supply, Distribution or Use
    J. National Technology Transfer and Advancement Act (NTTAA)
    K. Executive Order 12898: Federal Actions To Address 
Environmental Justice in Minority Populations and Low-Income 
Populations
    L. Congressional Review Act (CRA)
    M. Judicial Review

I. Preamble Glossary of Terms and Acronyms

    The following are abbreviations of terms used in the preamble.

APA Administrative Procedure Act
CAA Clean Air Act
CFR Code of Federal Regulations
DC District of Columbia
EO Executive Order
EPA Environmental Protection Agency
FR Federal Register
NAAQS National Ambient Air Quality Standards
NTTAA National Technology Transfer and Advancement Act
OMB Office of Management and Budget
SO<INF>2</INF> Sulfur Dioxide
SO<INF>X</INF> Sulfur Oxides
RFA Regulatory Flexibility Act
UMRA Unfunded Mandate Reform Act of 1995
TAR Tribal Authority Rule
TAD Technical Assistance Document
TSD Technical Support Document
U.S. United States

II. What is the purpose of this action?

    The purpose of this final action is to announce and promulgate 
initial air quality designations for certain areas in the U.S. for the 
2010 SO<INF>2</INF> NAAQS, in accordance with the requirements of the 
CAA. The EPA is designating areas as either Nonattainment, Attainment/
Unclassifiable, or Unclassifiable, based on the definitions described 
in Section IV in this preamble, and based on evaluating any available 
information, including (but not limited to) appropriate modeling 
analyses and/or monitoring data.
    This is the third round of designations for the 2010 SO<INF>2</INF> 
NAAQS. As discussed in Section IV of this document, the EPA is 
designating SO<INF>2</INF> areas in multiple rounds. The EPA completed 
the first round of SO<INF>2</INF> designations in an action signed on 
July 25, 2013 (78 FR 47191; August 5, 2013). In that action, the EPA 
designated 29 areas in 16 states as Nonattainment, based on air quality 
monitoring data. In the second round of SO<INF>2</INF> designations, in 
actions published on July 12, 2016 (81 FR 45039), and December 13, 2016 
(81 FR 89870), the EPA designated 65 additional areas in 24 states: 7 
Nonattainment areas, 41 Unclassifiable/Attainment areas and 17 
Unclassifiable areas. In this third round, 6 areas are being designated 
Nonattainment; 23 areas are being designated Unclassifiable; and the 
rest of the areas covered by this round in all states, territories, and 
tribal lands are being designated Attainment/Unclassifiable. In a 
future fourth round, the EPA expects to designate all remaining 
undesignated areas (approximately 50 areas) where states have installed 
and begun timely operation of a new SO<INF>2</INF> monitoring network.
    The list of areas being designated in the affected states and the 
boundaries of each area appear in the tables for each state within the 
regulatory text at the end of this document. For areas in this action 
that meet our definition of ``Attainment/Unclassifiable,'' the EPA 
notes this inversion, from previous rounds, of the order of the words 
``Attainment'' and ``Unclassifiable'' in the amended term ``Attainment/
Unclassifiable area'' has no consequence itself, and that there are no 
regulatory consequences of this change in, or clarified interpretation 
of, terminology to the areas in which the terms ``Attainment/
Unclassifiable'' or ``Unclassifiable'' are applied. For consistency, we 
are also inverting the order of ``Attainment'' and ``Unclassifiable'' 
for areas previously designated in Round 2 (81 FR 45039 and 81 FR 
89870). This re-ordering of the terms has no regulatory consequence and 
does not revisit the determinations made in Round 2 for these areas. 
The EPA believes this change is consistent with Congress's definition 
of ``Attainment area'' in CAA section 107(d)(1)(A)(ii), and will 
improve public understanding and make clearer what regulations apply to 
areas designated in this way, which states have commented they believe 
is important for the economic development of such areas.
    These designations are based on the EPA's nationwide analytical 
approach and technical assessment of and conclusions regarding the 
weight of evidence for each area, including but not limited to 
available air quality monitoring data or air quality modeling. With 
respect to air quality monitoring data, the EPA considered data from at 
least the most recent three calendar years 2014-2016 as available. In 
the modeling runs conducted by states or third parties, the impacts of 
the actual emissions for recent 3-year periods (e.g., 2012-2014, 2013-
2015, 2014-2016) were considered. In some cases, the modeling evaluated 
current allowable

[[Page 1100]]

emissions limits in lieu of or as a supplement to modeling of actual 
emissions. As described in Section VI and in limited circumstances, the 
EPA may consider early certified 2015-2017 monitoring data or other 
documentation that demonstrates Attainment. This information would need 
to be submitted to the EPA by February 28, 2018. For the areas being 
designated Nonattainment, the CAA directs states to develop and submit 
to the EPA State Implementation Plans (SIPs) within 18 months of the 
effective date of this final rule, that meet the requirements of 
sections 172(c) and 191-192 of the CAA and provide for Attainment of 
the NAAQS as expeditiously as practicable, but not later than 5 years 
from the effective date of this final rule.
    In 2010, the EPA issued a notice of final rulemaking that revised 
the primary SO<INF>2</INF> NAAQS (75 FR 35520; June 22, 2010) after 
review of the existing primary SO<INF>2</INF> standards promulgated on 
April 30, 1971 (36 FR 8187). The EPA established the revised primary 
SO<INF>2</INF> NAAQS at 75 parts per billion (ppb) which is attained 
when the 3-year average of the annual 99th percentile of 1-hour daily 
maximum concentrations does not exceed 75 ppb.
    The process for designating areas following promulgation of a new 
or revised NAAQS is contained in the CAA section 107(d) (42 U.S.C. 
7407(d)). After promulgation of a new or revised NAAQS, each governor 
or tribal leader has an opportunity to recommend air quality 
designations, including the appropriate boundaries for Nonattainment 
areas, to the EPA. The EPA considers these recommendations as part of 
its duty to promulgate the formal area designations and boundaries for 
the new or revised NAAQS. By no later than 120 days prior to 
promulgating designations, the EPA is required to notify states, 
territories, and tribes, as appropriate, of any intended modifications 
to an area designation or boundary recommendation that the EPA deems 
necessary.
    After invoking a 1-year extension of the deadlines to designate 
areas, as provided for in section 107 of the Act, the EPA completed an 
initial round of SO<INF>2</INF> designations for certain areas of the 
country on July 25, 2013 (referred to as ``Round 1'').\1\ Following the 
initial designations, three lawsuits were filed against the EPA in 
different U.S. District Courts, alleging the agency had failed to 
perform a nondiscretionary duty under the CAA by not designating all 
portions of the country by the June 2, 2013, deadline. In one of those 
cases, the U.S. District Court for the Northern District of California 
on March 2, 2015, entered an enforceable order for the EPA to complete 
the area designations by three specific deadlines according to the 
court-ordered schedule.
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    \1\ A total of 29 areas throughout the U.S. were designated in 
this action published on August 5, 2013 (78 FR 47191). The EPA 
designated all 29 areas Nonattainment based on violating monitored 
SO<INF>2</INF> concentrations from Federal Reference Method and 
Federal Equivalent Method monitors that are sited and operated in 
accordance with 40 CFR parts 50 and 58, and did not at that time 
designate any other areas.
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    To meet the first court-ordered deadline, additional areas were 
designated on June 30, 2016, and November 29, 2016 (collectively 
referred to as ``Round 2'').\2\ Pursuant to the court-ordered 
schedule,\3\ the EPA must complete SO<INF>2</INF> designations for the 
remaining areas of the country by two specific deadlines: December 31, 
2017, and December 31, 2020. This current third round of designations 
addresses all remaining undesignated areas except those where a state 
has installed and begun timely operating a new SO<INF>2</INF> 
monitoring network meeting EPA specifications referenced in EPA's 
SO<INF>2</INF> Data Requirements Rule.\4\
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    \2\ A total of 65 areas throughout the U.S. were designated in 
these actions published on July 12, 2016 (81 FR 45039), and December 
13, 2016 (81 FR 89870). Of these 65 areas, seven were designated 
Nonattainment.
    \3\ Sierra Club v. McCarthy, No. 3-13-cv-3953 (SI) (N.D. Cal. 
Mar. 2, 2015).
    \4\ 40 CFR part 51, subpart BB (80 FR 51052; August 21, 2015).
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    On or about August 22, 2017, consistent with section 
107(d)(1)(b)(ii) of the CAA, the EPA notified affected states, 
territories, and tribes of its intended designation of certain specific 
areas as either Nonattainment, Attainment/Unclassifiable, or 
Unclassifiable for the SO<INF>2</INF> NAAQS. These states then had the 
opportunity to demonstrate why they believed an intended modification 
of their updated recommendations by the EPA may be inappropriate. 
Although not required under the CAA, as the EPA had done for the first 
and second rounds of SO<INF>2</INF> designations, the EPA also chose to 
provide an opportunity for members of the public to comment on the 
EPA's August 2017 letters. The EPA published a notice of availability 
and public comment period for the intended designations on September 5, 
2017 (82 FR 41903). The public comment period closed on October 5, 
2017. The recommendations, the EPA's August 2017 letters, and the 
subsequent state and public comment letters, are in the docket for this 
third round of SO<INF>2</INF> designations at Docket ID No. EPA-HQ-OAR-
2017-0003 and are available on the SO<INF>2</INF> designations website.

III. What is the 2010 SO[bdi2] NAAQS and what are the health concerns 
that it addresses?

    The EPA revised the primary SO<INF>2</INF> NAAQS in a final rule 
published in the Federal Register on June 22, 2010 (75 FR 35520), which 
became effective on August 23, 2010. Based on review of the air quality 
criteria for oxides of sulfur and the primary NAAQS for oxides of 
sulfur as measured by SO<INF>2,</INF> the EPA revised the primary 
SO<INF>2</INF> NAAQS to provide requisite protection of public health 
with an adequate margin of safety. Specifically, the EPA established a 
new 1-hour SO<INF>2</INF> standard at a level of 75 ppb, which is met 
at an ambient air quality monitoring site when the 3-year average of 
the annual 99th percentile of 1-hour daily maximum concentrations is 
less than or equal to 75 ppb, as determined in accordance with Appendix 
T of 40 CFR part 50. 40 CFR 50.17(a) and (b). The EPA also established 
provisions to revoke both the existing 24-hour and annual primary 
SO<INF>2</INF> standards, subject to certain conditions. 40 CFR 
50.4(e).
    Current scientific evidence links short-term exposures to 
SO<INF>2</INF>, ranging from 5 minutes to 24 hours, with an array of 
adverse respiratory effects including bronchoconstriction and increased 
asthma symptoms. These effects are particularly important for 
asthmatics at elevated ventilation rates (e.g., while exercising or 
playing). Studies also show a connection between short-term exposure 
and increased visits to emergency departments and hospital admissions 
for respiratory illnesses, particularly in at-risk populations 
including children, the elderly and asthmatics.

IV. What are the CAA requirements for air quality designations and what 
action has the EPA taken to meet these requirements?

    After the EPA promulgates a new or revised NAAQS, the EPA is 
required to designate all areas of the country as either 
``Nonattainment,'' ``Attainment,'' or ``Unclassifiable,'' for that 
NAAQS pursuant to section 107(d)(1) of the CAA. As part of these Round 
3 designations, the EPA is implementing its interpretation of statutory 
terms under CAA section 107(d) nationwide and is basing these 
designations on the EPA's nationwide analytical approach and technical 
analysis, including evaluation of monitoring data and air quality 
modeling, applied to the available evidence for each area.

[[Page 1101]]

    Regarding statutory definitions and the EPA's interpretations of 
such, section 107(d)(1)(A)(i) of the CAA defines a Nonattainment area 
as an area that does not meet the NAAQS or that contributes to a nearby 
area that does not meet the NAAQS. An Attainment area is defined by the 
CAA as any area that meets the NAAQS and does not contribute to a 
nearby area that does not meet the NAAQS. Unclassifiable areas are 
defined by the CAA as those that cannot be classified on the basis of 
available information as meeting or not meeting the NAAQS.
    For the purpose of this action for the 2010 SO<INF>2</INF> NAAQS, 
the EPA has interpreted and applied the statutory definitions as 
follows. The EPA defines a Nonattainment area as an area that the EPA 
has determined violates the 2010 SO<INF>2</INF> NAAQS or contributes to 
a violation in a nearby area, based on the most recent 3 years of air 
quality monitoring data, appropriate dispersion modeling analysis, and 
any other relevant information.
    In this action, an Attainment/Unclassifiable area is defined by the 
EPA as an area that either: (1) Was not required to be characterized 
under 40 CFR 51.1203(c) or (d) for which available information does not 
indicate that the area violates the NAAQS or contributes to ambient air 
quality in a nearby area that does not meet the NAAQS; or (2) was 
required to be characterized under 40 CFR 51.1203(c) or (d) for which 
the EPA has determined the available information indicates the area 
meets the NAAQS and does not indicate the area contributes to ambient 
air quality in a nearby area that does not meet the NAAQS.
    In this action, an Unclassifiable area is defined by the EPA as an 
area for which the available information does not allow the EPA to 
determine whether the area meets the definition of a Nonattainment area 
or the definition of an Attainment/Unclassifiable area.
    This nationwide analytical approach also includes but is not 
limited to: (1) EPA's interpretations of other terms in the context of 
Round 3 of the 2010 SO<INF>2</INF> NAAQS; (2) the appropriate basis for 
characterizing the air quality of an area; (3) the five-factor analysis 
to determine the boundaries for each air quality area under the NAAQS; 
and (4) the methodology for appropriately characterizing SO<INF>2</INF> 
air quality through monitoring or modeling.
    The EPA notes that CAA section 107(d) provides the agency with 
discretion to determine how best to interpret the terms in the 
definition of a Nonattainment area (e.g., ``contributes to'' and 
``nearby'') for a new or revised NAAQS, given considerations such as 
the nature of a specific pollutant, the types of sources that may 
contribute to violations, the form of the standards for the pollutant, 
and other relevant information. In particular, the EPA's position is 
that the statute does not require the agency to establish bright line 
tests or thresholds for what constitutes ``contribution'' or ``nearby'' 
for purposes of designations.\5\
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    \5\ This view was confirmed in Catawba County v. EPA, 571 F.3d 
20 (D.C. Cir. 2009).
---------------------------------------------------------------------------

    Similarly, the EPA's position is that the statute permits the EPA 
to evaluate the appropriate application of the term ``area'' to include 
geographic areas based upon full or partial county boundaries, as may 
be appropriate for a particular NAAQS. For example, CAA section 
107(d)(1)(B)(ii) explicitly provides that the EPA can make 
modifications to designation recommendations for an area ``or portions 
thereof,'' and under CAA section 107(d)(1)(B)(iv) a designation remains 
in effect for an area ``or portion thereof'' until the EPA redesignates 
it.
    By no later than 1 year after the promulgation of a new or revised 
NAAQS, CAA section 107(d)(1)(A) provides that each state governor is 
required to recommend air quality designations, including the 
appropriate boundaries for areas, to the EPA.\6\ The EPA reviews those 
recommendations and is authorized to make any modifications the 
Administrator deems necessary. The statute does not define the term 
``necessary,'' but the EPA interprets this to authorize the 
Administrator to modify designations that did not meet the statutory 
requirements or were otherwise inconsistent with the facts or analysis 
deemed appropriate by the Administrator. If the EPA is considering 
modifications to a recommendation, we are required by CAA section 
107(d)(1)(B)(ii) to notify the state of any such intended modifications 
not less than 120 days prior to our promulgation of the final 
designation. These notifications are commonly known as the ``120-day 
letters.'' During this period, if the state or territory does not agree 
with the EPA's proposed modification, it has an opportunity to respond 
to the EPA and to demonstrate why it believes the modification proposed 
by the EPA is inappropriate. If a state or territory fails to provide 
any recommendation for an area, in whole or in part, the EPA still must 
promulgate a designation that the Administrator deems appropriate, 
pursuant to CAA section 107(d)(1)(B)(ii). While CAA section 107(d) 
specifically addresses the designations process between the EPA and 
states and territories, the EPA followed the same process to the extent 
practicable for tribes that submitted designation recommendations.
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    \6\ Tribes are invited to submit recommendations following 
promulgation of a new or revised NAAQS, but are not required to do 
so.
---------------------------------------------------------------------------

V. What guidance did the EPA issue and how did the EPA apply the 
statutory requirements and applicable guidance to determine area 
designations and boundaries?

    In the notice of proposed rulemaking for the revised SO<INF>2</INF> 
NAAQS (74 FR 64810; December 8, 2009), the EPA issued proposed guidance 
on our approach to implementing the standard, including our approach to 
initial area designations. The EPA solicited comment on that guidance 
and, in the notice of final rulemaking (75 FR 35520; June 22, 2010), 
provided further guidance concerning implementation of the standard and 
how to identify Nonattainment areas and boundaries for the 
SO<INF>2</INF> NAAQS. Subsequently, on March 24, 2011, the EPA provided 
additional designations guidance to assist states with making their 
recommendations for area designations and boundaries.\7\ That guidance 
recommended, among other things, that monitoring data from the most 
recent 3 consecutive years be used to identify a violation of the 
SO<INF>2</INF> NAAQS. This is appropriate because the form of the 
SO<INF>2</INF> NAAQS is calculated as a 3-year average of the 99th 
percentile of the yearly distribution of 1-hour daily maximum 
SO<INF>2</INF> concentrations (specifically the most recent 3 
consecutive years). The EPA based the first round of final 
SO<INF>2</INF> designations in 2013 solely on violating monitored 
SO<INF>2</INF> concentrations for the years 2010-2012 from Federal 
Reference Method and Federal Equivalent Method monitors that are sited 
and operated in accordance with 40 CFR parts 50 and 58, and did not at 
that time designate any other areas.
---------------------------------------------------------------------------

    \7\ See, ``Area Designations for the 2010 Revised Primary Sulfur 
Dioxide National Ambient Air Quality Standards,'' memorandum to 
Regional Air Division Directors, Regions I-X, from Stephen D. Page, 
dated March 24, 2011.
---------------------------------------------------------------------------

    In the March 24, 2011, guidance, the EPA stated that the perimeter 
of a county containing a violation would be the initial presumptive 
boundary for Nonattainment areas, but also stated that the state, tribe 
and/or the EPA could conduct additional area-specific analyses that 
could justify establishing either a larger or smaller area. The EPA 
indicated that the following factors should be considered in an 
analysis of whether to exclude portions of a county

[[Page 1102]]

and whether to include additional nearby areas outside the county as 
part of the designated Nonattainment area: (1) Air quality data; (2) 
emissions-related data; (3) meteorology; (4) geography/topography; and 
(5) jurisdictional boundaries, as well as other available data. States 
and tribes may identify and evaluate other relevant factors or 
circumstances specific to a particular area.
    Following entry of the March 2, 2015, court order setting forth the 
schedule for the EPA to complete SO<INF>2</INF> designations, the EPA 
issued updated designations guidance.\8\ This guidance superseded the 
March 24, 2011, designation guidance for the 2010 SO<INF>2</INF> NAAQS, 
and identified factors that the EPA intended to evaluate in determining 
whether areas are in violation of the 2010 SO<INF>2</INF> NAAQS or 
contribute to air quality in nearby areas that are in violation of the 
2010 SO<INF>2</INF> NAAQS. The guidance also contained the factors the 
EPA intended to evaluate in determining the boundaries for all 
remaining areas in the country, consistent with the court's order and 
schedule. These factors include: (1) Air quality characterization via 
ambient monitoring or dispersion modeling results; (2) emissions-
related data; (3) meteorology; (4) geography and topography; and (5) 
jurisdictional boundaries.\9\
---------------------------------------------------------------------------

    \8\ See, ``Updated Guidance for Area Designations for the 2010 
Primary Sulfur Dioxide National Ambient Air Quality Standard,'' 
memorandum to Regional Air Division Directors, Regions I-X, from 
Stephen D. Page, dated March 20, 2015.
    \9\ The EPA supplemented this guidance with documents first made 
available to states and other interested parties in 2013 and updated 
in 2016. See SO<INF>2</INF> NAAQS Designations Source-Oriented 
Monitoring Technical Assistance Document (February 2016), available 
at https://www.epa.gov/sites/production/files/2016-06/documents/so2monitoringtad.pdf, and SO<INF>2</INF> NAAQS Designations Modeling 
Technical Assistance Document (August 2016), available at https://www.epa.gov/sites/production/files/2016-06/documents/so2modelingtad.pdf.
---------------------------------------------------------------------------

    On March 8, 2017, the EPA issued a memo to clarify what version of 
the AERMOD modeling system is the most appropriate for consideration by 
the agency in the SO<INF>2</INF> designations process.\10\
---------------------------------------------------------------------------

    \10\ See ``Clarification on the AERMOD Modeling System Version 
for Use in SO<INF>2</INF> Implementation Efforts and Other 
Regulatory Actions,'' memorandum to EPA Regional Air Division 
Directors from Richard A. Wayland, dated March 8, 2017. This memo is 
available at https://www3.epa.gov/ttn/scram/guidance/clarification/SO2_DRR_Designation_Modeling_Clarification_Memo-03082017.pdf.
---------------------------------------------------------------------------

VI. What air quality information has the EPA used for these 
designations?

    For designations for the SO<INF>2</INF> NAAQS, air agencies have 
the flexibility to characterize air quality using either appropriately 
sited ambient air quality monitors or modeling of actual or current 
allowable source emissions. These designations are based on the EPA's 
application of the nationwide analytical approach to, and technical 
assessment of, the weight of evidence for each area, including but not 
limited to available air quality monitoring data and air quality 
modeling results. The 1-hour primary SO<INF>2</INF> standard is 
violated at an ambient air quality monitoring site (or in the case of 
dispersion modeling, at an ambient air quality receptor location) when 
the 3-year average of the annual 99th percentile of the daily maximum 
1-hour average concentrations exceeds 75 ppb, as determined in 
accordance with Appendix T of 40 CFR part 50. With respect to air 
quality monitoring data, the EPA has considered data from at least the 
most recent 3 calendar years, i.e., 2014-2016, as available. In most of 
the modeling runs available for EPA's review, the impacts of the actual 
emissions for one or more of the recent 3-year periods (e.g., 2012-
2014, 2013-2015, 2014-2016) were considered, and in some cases the 
modeling was of currently effective limits on allowable emissions in 
lieu of or as a supplement to modeling of actual emissions.
    The deadline for Round 3 designations and the practical 
difficulties of obtaining source emissions data for modeling, and 
complete, quality-assured, certified SO<INF>2</INF> monitoring data for 
the entirety of calendar year 2017 in December 2017, make the EPA's use 
of final 2017 emissions and monitoring data for this action generally 
impracticable. Under normal circumstances, the full year of such data 
would not be available to support regulatory determinations until after 
the end of the calendar year, and under the applicable regulations, the 
deadline for states to certify monitoring data is May 1, 2018. However, 
because these designations are being promulgated at the end of calendar 
year 2017, and because states can obtain source emissions information 
and make complete, quality-assured, certified 2017 data available for 
some areas quickly in 2018, in order to address the impracticability 
problem, the EPA is providing a process by which state-certified 2017 
monitoring or emissions data that become available early in 2018 could 
be used in the designation process. We have provided that the final 
SO<INF>2</INF> designation decisions announced in this action will be 
effective on the date 90 days following the date of publication of this 
action in the Federal Register. If any state submits complete, quality-
assured, certified 2017 data or related information about 2017 air 
quality to the EPA by February 28, 2018, supporting a change of the 
designation status for any area within that state, and the EPA agrees 
that a change of designation status is appropriate, then we will 
withdraw the designation announced in this action for such area and 
issue another designation that reflects the inclusion and analysis of 
such information. We emphasize that we will conduct this process only 
for those states that submit the information by the deadline of 
February 28, 2018, and in those instances where we can complete our 
analysis of the information and effect the change of designation status 
before the original effective date established by this final action.
    If these submissions cause an area to change from Nonattainment to 
Attainment or Unclassifiable, the EPA will change the designation for 
the area following the process described in the preceding paragraph. If 
inclusion of 2017 data or related information about 2017 air quality 
indicates Nonattainment in an area that was designated Attainment or 
Unclassifiable, we will evaluate the reasons for the violation in the 
area and determine the appropriate course of action, which could 
include additional future action to change the designation for the area 
to Nonattainment.

VII. How do the Round 3 designations affect Indian country?

    For areas of Indian country, there are no violating monitors. The 
Navajo Nation submitted modeling analyses for the areas around two 
SO<INF>2</INF> emission sources located in the Navajo Nation, the 
Navajo Generating Station and the Four Corners Power Plant, neither of 
which indicated a violation of the NAAQS. The Navajo Nation, the lands 
of the Hopi Tribe, and the Southern Ute Indian Reservation are being 
designated as separate areas. All other parts of Indian country are 
being designated as Attainment/Unclassifiable or Unclassifiable along 
with the surrounding state area. No areas of Indian country are being 
designated as Nonattainment in this round.

VIII. Where can I find information forming the basis for this rule and 
exchanges between the EPA, states and tribes related to this rule?

    Information providing the basis for this final action are provided 
in a final technical support document (TSD) \11\

[[Page 1103]]

included in the docket. The final TSD, intended designations TSD, 
modeling files, technical assistance documents, applicable EPA guidance 
memoranda, public comments, and copies of correspondence regarding this 
process between the EPA and the states, territories, tribes, and other 
parties, are available for review at the public docket for these 
SO<INF>2</INF> designations at https://www.regulations.gov under Docket 
ID No. EPA-HQ-OAR-2017-0003, at the EPA Docket Center listed above in 
the ADDRESSES section of this document and on the agency's 
SO<INF>2</INF> Designations website at https://www.epa.gov/sulfur-dioxide-designations. Area-specific questions can be addressed to the 
EPA Regional offices (see contact information provided at the beginning 
of this document).
---------------------------------------------------------------------------

    \11\ The single final TSD for this action consists of a few 
sections with information that applies to all affected areas or to 
certain groups of areas with some common features, and many sections 
that are specific to individual states, territories, or tribal 
areas. For convenience, the term ``TSD'' is also used generically to 
refer to these state/territory/tribe-specific sections. For 
informational purposes, these individual state/territory/tribe-
specific sections/TSDs are available for separate downloading from 
the indicated EPA website.
---------------------------------------------------------------------------

IX. Environmental Justice Concerns

    When the EPA establishes a new or revised NAAQS, the CAA requires 
the EPA to designate all areas of the U.S. as either Nonattainment, 
Attainment, or Unclassifiable. This action addresses designation 
determinations for certain areas for the 2010 SO<INF>2</INF> NAAQS. 
Area designations address environmental justice concerns by ensuring 
that the public is properly informed about the air quality in an area. 
In locations where air quality does not meet the NAAQS, the CAA 
requires relevant state authorities to initiate appropriate air quality 
management actions to ensure that all those residing, working, 
attending school, or otherwise present in those areas are protected, 
regardless of minority and economic status.

X. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review and Executive 
Order 13563: Improving Regulation and Regulatory Review

    This action is exempt from review by the Office of Management and 
Budget because it responds to the CAA requirement to promulgate air 
quality designations after promulgation of a new or revised NAAQS.

B. Executive Order 13771: Reducing Regulations and Controlling 
Regulatory Costs

    This action is not an Executive Order 13771 regulatory action 
because actions such as air quality designations after promulgating a 
new revised NAAQS are exempt under Executive Order 12866.

C. Paperwork Reduction Act (PRA)

    This action does not impose an information collection burden under 
the PRA. This action fulfills the non-discretionary duty for the EPA to 
promulgate air quality designations after promulgation of a new or 
revised NAAQS and does not contain any information collection 
activities.

D. Regulatory Flexibility Act (RFA)

    This designation action under CAA section 107(d) is not subject to 
the RFA. The RFA applies only to rules subject to notice-and-comment 
rulemaking requirements under the APA, 5 U.S.C. 553, or any other 
statute. Section 107(d)(2)(B) of the CAA explicitly provides that 
designations are exempt from the notice-and-comment provisions of the 
APA. In addition, designations under CAA section 107(d) are not among 
the list of actions that are subject to the notice-and-comment 
rulemaking requirements of CAA section 307(d).

E. Unfunded Mandates Reform Act (UMRA)

    This action does not contain any unfunded mandate as described in 
UMRA, 2 U.S.C. 1531-1538 and does not significantly or uniquely affect 
small governments. The action imposes no enforceable duty on any state, 
local, or tribal governments or the private sector.

F. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have 
substantial direct effects on the states, on the relationship between 
the national government and the states, or on the distribution of power 
and responsibilities among the various levels of government. The 
division of responsibility between the federal government and the 
states for purposes of implementing the NAAQS is established under the 
CAA.

G. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Government

    This action does not have tribal implications, as specified in 
Executive Order 13175. This action concerns the designation of certain 
areas in the U.S. for the 2010 SO<INF>2</INF> NAAQS. The CAA provides 
for states, territories, and eligible tribes to develop plans to 
regulate emissions of air pollutants within their areas, as necessary, 
based on the designations. The Tribal Authority Rule (TAR) provides 
tribes the opportunity to apply for eligibility to develop and 
implement CAA programs, such as programs to attain and maintain the 
SO<INF>2</INF> NAAQS, but it leaves to the discretion of the tribe the 
decision of whether to apply to develop these programs and which 
programs, or appropriate elements of a program, the tribe will seek to 
adopt. This rule does not have a substantial direct effect on one or 
more Indian tribes. It would not create any additional requirements 
beyond those of the SO<INF>2</INF> NAAQS. This rule establishes the 
designations for certain areas of the country for the SO<INF>2</INF> 
NAAQS, but no areas of Indian country are being designated as 
Nonattainment by this action. Furthermore, this rule does not affect 
the relationship or distribution of power and responsibilities between 
the federal government and Indian tribes. The CAA and the TAR establish 
the relationship of the federal government and tribes in developing 
plans to attain the NAAQS, and this rule does nothing to modify that 
relationship. Thus, Executive Order 13175 does not apply.
    Although Executive Order 13175 does not apply to this rule, after 
the EPA promulgated the 2010 primary SO<INF>2</INF> NAAQS, the EPA 
communicated with tribal leaders and environmental staff regarding the 
designations process. In 2011, the EPA also sent individualized letters 
to all federally recognized tribes to explain the designation process 
for the 2010 primary SO<INF>2</INF> NAAQS, to provide the EPA 
designations guidance, and to offer consultation with the EPA. The EPA 
provided further information to tribes through presentations at the 
National Tribal Forum and through participation in National Tribal Air 
Association conference calls. The EPA also sent individualized letters 
to all federally recognized tribes that submitted recommendations to 
the EPA about the EPA's intended Round 1 designations for the 
SO<INF>2</INF> standard and offered tribal leaders the opportunity for 
consultation.\12\ These communications provided opportunities for 
tribes to voice concerns to the EPA about the general designations 
process for the 2010 SO<INF>2</INF> NAAQS, as well as concerns specific 
to a tribe, and informed the EPA about key tribal concerns regarding 
designations as the designations process was under development and 
through its implementation up to that point. For the second round of 
SO<INF>2</INF> designations, the EPA sent additional letters to tribes 
that could potentially be affected and offered

[[Page 1104]]

additional opportunities for participation in the designations process. 
For this third round of SO<INF>2</INF> designations, the EPA has sent 
similar letters to affected tribes.
---------------------------------------------------------------------------

    \12\ These communication letters to the tribes are provided in 
the dockets for Round 1 (Docket ID No. EPA-HQ-OAR-2012-0233 and 
Round 2 (Docket ID No. EPA-HQ-OAR-2014-0464).
---------------------------------------------------------------------------

H. Executive Order 13045: Protection of Children From Environmental 
Health and Safety Risks

    The EPA interprets Executive Order 13045 as applying to those 
regulatory actions that concern environmental health or safety risks 
that the EPA has reason to believe may disproportionately affect 
children, per the definition of ``covered regulatory action'' in 
section 2-202 of the Executive Order. This action is not subject to 
Executive Order 13045 because it does not establish an environmental 
standard intended to mitigate health or safety risks.

I. Executive Order 13211: Actions That Significantly Affect Energy 
Supply, Distribution or Use

    This action is not subject to Executive Order 13211 because it is 
not a significant regulatory action under Executive Order 12866.

J. National Technology Transfer and Advancement Act (NTTAA)

    This rulemaking does not involve technical standards.

K. Executive Order 12898: Federal Actions To Address Environmental 
Justice in Minority Populations and Low-Income Populations

    The EPA believes that this action does not have disproportionately 
high and adverse human health or environmental effects on minority 
populations, low-income populations and/or indigenous peoples, as 
specified in Executive Order 12898 (59 FR 7629, February 16, 1994). The 
documentation for this determination is contained in Section IX of this 
preamble, ``Environmental Justice Concerns.''

L. Congressional Review Act (CRA)

    This action is subject to the CRA, and the EPA will submit a rule 
report to each House of the Congress and to the Comptroller General of 
the U.S. This action is not a ``major rule'' as defined by 5 U.S.C. 
804(2).

M. Judicial Review

    Section 307(b)(1) of the CAA indicates which Federal Courts of 
Appeal have venue for petitions of review of final actions by the EPA. 
This section provides, in part, that petitions for review must be filed 
in the Court of Appeals for the District of Columbia Circuit: (i) When 
the agency action consists of ``nationally applicable regulations 
promulgated, or final actions taken, by the Administrator,'' or (ii) 
when such action is locally or regionally applicable, if ``such action 
is based on a determination of nationwide scope or effect and if in 
taking such action the Administrator finds and publishes that such 
action is based on such a determination.''
    This final action to designate certain areas for the 2010 
SO<INF>2</INF> NAAQS is ``nationally applicable'' within the meaning of 
section 307(b)(1). The final action establishes designations for areas 
across the U.S. for the 2010 SO<INF>2</INF> NAAQS. At the core of this 
action is the EPA's nationwide analytical approach and technical 
analysis, including evaluation of monitoring data and air quality 
modeling, applied to the available evidence for each area, including 
the EPA's interpretation of statutory terms in the CAA such as the 
definitions of Nonattainment, Attainment, and Unclassifiable under 
section 107(d)(1) of the CAA, and its application of that 
interpretation to areas across the country. Accordingly, the 
Administrator has determined that the final action is nationally 
applicable and is hereby publishing that finding in the Federal 
Register.
    For the same reasons discussed above that make the final rule 
nationally applicable, the Administrator also has determined that the 
final designations are of nationwide scope and effect for the purposes 
of section 307(b)(1). This is particularly appropriate because, in the 
report on the 1977 Amendments that revised section 307(b)(1) of the 
CAA, Congress noted that the Administrator's determination that an 
action is of ``nationwide scope or effect'' would be appropriate for 
any action that has a scope or effect beyond a single judicial circuit. 
H.R. Rep. No. 95-294 at 323, 324, reprinted in 1977 U.S.C.C.A.N. 1402-
03. Here, the scope and effect of the action will extend to numerous 
judicial circuits since the designations will apply to areas across the 
country. In these circumstances, section 307(b)(1) and its legislative 
history calls for the Administrator to find the action to be of 
``nationwide scope or effect'' and for venue to be in the D.C. Circuit. 
Therefore, the Administrator has determined that the final action is 
based on a determination by the Administrator of nationwide scope or 
effect, and is hereby publishing that finding in the Federal Register.

List of Subjects in 40 CFR Part 81

    Air pollution control, National parks, Wilderness areas.

    Dated: December 21, 2017.
E. Scott Pruitt,
Administrator.

    For the reasons set forth in the preamble, 40 CFR part 81 is 
amended as follows:

PART 81--DESIGNATIONS OF AREAS FOR AIR QUALITY PLANNING PURPOSES

0
1. The authority citation for part 81 continues to read as follows:

    Authority: 42 U.S.C. 7401, et seq.

Subpart C--Section 107 Attainment Status Designations

0
2. Section 81.301 is amended by adding a table titled ``Alabama--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table titled ``Alabama--
1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.301  Alabama.

* * * * *

                                  Alabama--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Escambia County............................  ..............  Unclassifiable.
Mobile County..............................  ..............  Unclassifiable.
Morgan County..............................  ..............  Unclassifiable.
Pike County................................  ..............  Unclassifiable.
Shelby County..............................  ..............  Unclassifiable.
    Shelby County (part) \3\
        2016 US Census Block Groups
         011170308001 and 011170308002
Washington County..........................  ..............  Unclassifiable.

[[Page 1105]]

 
Rest of State:
    Autauga County.........................  ..............  Attainment/Unclassifiable.
    Baldwin County.........................  ..............  Attainment/Unclassifiable.
    Barbour County.........................  ..............  Attainment/Unclassifiable.
    Bibb County............................  ..............  Attainment/Unclassifiable.
    Blount County..........................  ..............  Attainment/Unclassifiable.
    Bullock County.........................  ..............  Attainment/Unclassifiable.
    Butler County..........................  ..............  Attainment/Unclassifiable.
    Calhoun County.........................  ..............  Attainment/Unclassifiable.
    Chambers County........................  ..............  Attainment/Unclassifiable.
    Cherokee County........................  ..............  Attainment/Unclassifiable.
    Chilton County.........................  ..............  Attainment/Unclassifiable.
    Choctaw County.........................  ..............  Attainment/Unclassifiable.
    Clarke County..........................  ..............  Attainment/Unclassifiable.
    Clay County............................  ..............  Attainment/Unclassifiable.
    Cleburne County........................  ..............  Attainment/Unclassifiable.
    Coffee County..........................  ..............  Attainment/Unclassifiable.
    Colbert County.........................  ..............  Attainment/Unclassifiable.
    Conecuh County.........................  ..............  Attainment/Unclassifiable.
    Coosa County...........................  ..............  Attainment/Unclassifiable.
    Covington County.......................  ..............  Attainment/Unclassifiable.
    Crenshaw County........................  ..............  Attainment/Unclassifiable.
    Cullman County.........................  ..............  Attainment/Unclassifiable.
    Dale County............................  ..............  Attainment/Unclassifiable.
    Dallas County..........................  ..............  Attainment/Unclassifiable.
    DeKalb County..........................  ..............  Attainment/Unclassifiable.
    Elmore County..........................  ..............  Attainment/Unclassifiable.
    Etowah County..........................  ..............  Attainment/Unclassifiable.
    Fayette County.........................  ..............  Attainment/Unclassifiable.
    Franklin County........................  ..............  Attainment/Unclassifiable.
    Geneva County..........................  ..............  Attainment/Unclassifiable.
    Greene County..........................  ..............  Attainment/Unclassifiable.
    Hale County............................  ..............  Attainment/Unclassifiable.
    Henry County...........................  ..............  Attainment/Unclassifiable.
    Houston County.........................  ..............  Attainment/Unclassifiable.
    Jackson County.........................  ..............  Attainment/Unclassifiable.
    Jefferson County.......................  ..............  Attainment/Unclassifiable.
    Lamar County...........................  ..............  Attainment/Unclassifiable.
    Lauderdale County......................  ..............  Attainment/Unclassifiable.
    Lawrence County........................  ..............  Attainment/Unclassifiable.
    Lee County.............................  ..............  Attainment/Unclassifiable.
    Limestone County.......................  ..............  Attainment/Unclassifiable.
    Lowndes County.........................  ..............  Attainment/Unclassifiable.
    Macon County...........................  ..............  Attainment/Unclassifiable.
    Madison County.........................  ..............  Attainment/Unclassifiable.
    Marengo County.........................  ..............  Attainment/Unclassifiable.
    Marion County..........................  ..............  Attainment/Unclassifiable.
    Marshall County........................  ..............  Attainment/Unclassifiable.
    Monroe County..........................  ..............  Attainment/Unclassifiable.
    Montgomery County......................  ..............  Attainment/Unclassifiable.
    Perry County...........................  ..............  Attainment/Unclassifiable.
    Pickens County.........................  ..............  Attainment/Unclassifiable.
    Randolph County........................  ..............  Attainment/Unclassifiable.
    Russell County.........................  ..............  Attainment/Unclassifiable.
    St. Clair County.......................  ..............  Attainment/Unclassifiable.
    Sumter County..........................  ..............  Attainment/Unclassifiable.
    Talladega County.......................  ..............  Attainment/Unclassifiable.
    Tallapoosa County......................  ..............  Attainment/Unclassifiable.
    Tuscaloosa County......................  ..............  Attainment/Unclassifiable.
    Walker County..........................  ..............  Attainment/Unclassifiable.
    Wilcox County..........................  ..............  Attainment/Unclassifiable.
    Winston County.........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ The remainder of Shelby County will be designated by December 31, 2020.


[[Page 1106]]

* * * * *

0
3. Section 81.302 is amended by adding a table titled ``Alaska--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table titled ``Alaska--
1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.302  Alaska.

* * * * *

                                   Alaska--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Entire State...............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
4. Section 81.303 is amended by revising the table entitled ``Arizona--
2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.303  Arizona.

* * * * *

                                  Arizona--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Hayden, AZ \3\.............................         10-4-13  Nonattainment.
    Gila County (part)
        The portions of Gila County that
         are bounded by: T4S, R14E; T4S,
         R15E; T4S, R16E; T5S, R15E; T5S,
         R16E
    Pinal County (part)
        The portions of Pinal County that
         are bounded by: T4S, R14E; T4S,
         R15E; T4S, R16E; T5S, R14E; T5S,
         R15E; T5S, R16E; T6S, R14E; T6S,
         R15E; T6S, R16E
Miami, AZ \3\..............................         10-4-13  Nonattainment.
    Gila County (part)
        The portions of Gila County that
         are bounded by: T2N, R14E; T2N,
         R15E; T1N, R13E; T1N, R14E; T1N,
         R15E; T1S, R14E; T1S, R14 1/2E;
         T1S, R15E
Coconino County (part).....................  ..............  Unclassifiable.
    The portions of Coconino County located
     within the Navajo Nation areas of
     Indian country within a 50-km radius
     of the Navajo Generating Station at
     the coordinates 39.904006 decimal
     degrees latitude and -111.389435
     decimal degrees longitude, using the
     1984 World Geodetic Survey datum.
Rest of State:
    Apache County (part) \4\...............  ..............  Attainment/Unclassifiable.
    Cochise County.........................  ..............  Attainment/Unclassifiable.
    Coconino County (part) \5\.............  ..............  Attainment/Unclassifiable.
    Gila County (part) \6\.................  ..............  Attainment/Unclassifiable.
    Graham County..........................  ..............  Attainment/Unclassifiable.
    Greenlee County........................  ..............  Attainment/Unclassifiable.
    Lands of the Hopi Tribe................  ..............  Attainment/Unclassifiable.
    La Paz County..........................  ..............  Attainment/Unclassifiable.
    Maricopa County........................  ..............  Attainment/Unclassifiable.
    Mohave County..........................  ..............  Attainment/Unclassifiable.
    Navajo County (part) \7\...............  ..............  Attainment/Unclassifiable.
    Lands of the Navajo Nation (part) \8\..  ..............  Attainment/Unclassifiable.
    Pima County............................  ..............  Attainment/Unclassifiable.
    Pinal County (part) \9\................  ..............  Attainment/Unclassifiable.
    Santa Cruz County......................  ..............  Attainment/Unclassifiable.
    Yavapai County.........................  ..............  Attainment/Unclassifiable.
    Yuma County............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Excludes Indian country located in each area, if any, unless otherwise specified.
\4\ Excludes lands of the White Mountain Apache Tribe.
\5\ Excludes lands of the Hopi Tribe and lands of the Navajo Nation.
\6\ Excludes the lands of the White Mountain Apache Tribe and the Hayden, AZ and Miami, AZ Nonattainment areas.
\7\ Includes all lands of the White Mountain Apache Tribe, including those lands of the White Mountain Apache
  Tribe geographically located in Apache County and Gila County, and excludes lands of the Hopi Tribe and lands
  of the Navajo Nation.
\8\ Includes all lands of the Navajo Nation except for the portions of the Navajo Nation lands designated
  Unclassifiable. Includes the lands of the Navajo Nation geographically located within the states of New Mexico
  and Utah.
\9\ Excludes the Hayden, AZ Nonattainment area.


[[Page 1107]]

* * * * *

0
5. Section 81.304 is amended by revising the table entitled 
``Arkansas--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.304  Arkansas.

* * * * *

                                  Arkansas--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Independence County........................         9/12/16  Unclassifiable.
Arkansas County............................  ..............  Attainment/Unclassifiable.
Ashley County..............................  ..............  Attainment/Unclassifiable.
Baxter County..............................  ..............  Attainment/Unclassifiable.
Benton County..............................  ..............  Attainment/Unclassifiable.
Boone County...............................  ..............  Attainment/Unclassifiable.
Bradley County.............................  ..............  Attainment/Unclassifiable.
Calhoun County.............................  ..............  Attainment/Unclassifiable.
Carroll County.............................  ..............  Attainment/Unclassifiable.
Chicot County..............................  ..............  Attainment/Unclassifiable.
Clark County...............................  ..............  Attainment/Unclassifiable.
Clay County................................  ..............  Attainment/Unclassifiable.
Cleburne County............................  ..............  Attainment/Unclassifiable.
Cleveland County...........................  ..............  Attainment/Unclassifiable.
Columbia County............................  ..............  Attainment/Unclassifiable.
Conway County..............................  ..............  Attainment/Unclassifiable.
Craighead County...........................  ..............  Attainment/Unclassifiable.
Crawford County............................  ..............  Attainment/Unclassifiable.
Crittenden County..........................  ..............  Attainment/Unclassifiable.
Cross County...............................  ..............  Attainment/Unclassifiable.
Dallas County..............................  ..............  Attainment/Unclassifiable.
Desha County...............................  ..............  Attainment/Unclassifiable.
Drew County................................  ..............  Attainment/Unclassifiable.
Faulkner County............................  ..............  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
Fulton County..............................  ..............  Attainment/Unclassifiable.
Garland County.............................  ..............  Attainment/Unclassifiable.
Grant County...............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Hempstead County...........................  ..............  Attainment/Unclassifiable.
Hot Spring County..........................  ..............  Attainment/Unclassifiable.
Howard County..............................  ..............  Attainment/Unclassifiable.
Izard County...............................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jefferson County...........................         9/12/16  Attainment/Unclassifiable.
Johnson County.............................  ..............  Attainment/Unclassifiable.
Lafayette County...........................  ..............  Attainment/Unclassifiable.
Lawrence County............................  ..............  Attainment/Unclassifiable.
Lee County.................................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Little River County........................  ..............  Attainment/Unclassifiable.
Logan County...............................  ..............  Attainment/Unclassifiable.
Lonoke County..............................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Marion County..............................  ..............  Attainment/Unclassifiable.
Miller County..............................  ..............  Attainment/Unclassifiable.
Mississippi County.........................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Nevada County..............................  ..............  Attainment/Unclassifiable.
Newton County..............................  ..............  Attainment/Unclassifiable.
Ouachita County............................  ..............  Attainment/Unclassifiable.
Perry County...............................  ..............  Attainment/Unclassifiable.
Phillips County............................  ..............  Attainment/Unclassifiable.
Pike County................................  ..............  Attainment/Unclassifiable.
Poinsett County............................  ..............  Attainment/Unclassifiable.
Polk County................................  ..............  Attainment/Unclassifiable.
Pope County................................  ..............  Attainment/Unclassifiable.
Prairie County.............................  ..............  Attainment/Unclassifiable.
Pulaski County.............................  ..............  Attainment/Unclassifiable.
Randolph County............................  ..............  Attainment/Unclassifiable.
St. Francis County.........................  ..............  Attainment/Unclassifiable.
Saline County..............................  ..............  Attainment/Unclassifiable.
Scott County...............................  ..............  Attainment/Unclassifiable.
Searcy County..............................  ..............  Attainment/Unclassifiable.
Sebastian County...........................  ..............  Attainment/Unclassifiable.

[[Page 1108]]

 
Sevier County..............................  ..............  Attainment/Unclassifiable.
Sharp County...............................  ..............  Attainment/Unclassifiable.
Stone County...............................  ..............  Attainment/Unclassifiable.
Union County...............................  ..............  Attainment/Unclassifiable.
Van Buren County...........................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
White County...............................  ..............  Attainment/Unclassifiable.
Woodruff County............................  ..............  Attainment/Unclassifiable.
Yell County................................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
6. Section 81.305 is amended by adding a table titled ``California--
2010 Sulfur Dioxide NAAQS (Primary)'' following the table 
``California--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to 
read as follows:


Sec.  81.305  California.

* * * * *

             California--2010 Sulfur Dioxide NAAQS (Primary)
------------------------------------------------------------------------
                                               Designation
      Designated area \1\       ----------------------------------------
                                    Date \2\               Type
------------------------------------------------------------------------
Great Basin Valleys Air Basin..  ..............  Attainment/
                                                  Unclassifiable.
    Alpine County..............
    Inyo County................
    Mono County................
Lake County Air Basin..........  ..............  Attainment/
                                                  Unclassifiable.
    Lake County................
Lake Tahoe Air Basin...........  ..............  Attainment/
                                                  Unclassifiable.
    El Dorado County (part)....
        That portion of El
         Dorado County within
         the drainage area
         naturally tributary to
         Lake Tahoe including
         said Lake.
    Placer County (part).......
        That portion of Placer
         County within the
         drainage area
         naturally tributary to
         Lake Tahoe including
         said Lake, plus that
         area in the vicinity
         of the head of the
         Truckee River
         described as follows:
         Commencing at the
         point common to the
         aforementioned
         drainage area
         crestline and the line
         common to Townships 15
         North and 16 North,
         M.D.B. & M., and
         following that line in
         a westerly direction
         to the northwest
         corner of Section 3,
         Township 15 North,
         Range 16 East, M.D.B.
         & M., thence south
         along the west line of
         Sections 3 and 10,
         Township 15 North,
         Range 16 East, M.D.B.
         & M., to the
         intersection with the
         said drainage area
         crestline, thence
         following the said
         drainage area boundary
         in a southeasterly
         direction, then
         northeasterly
         direction to and along
         the Lake Tahoe Dam,
         thence following the
         said drainage area
         crestline in a
         northeasterly, then
         northwesterly
         direction to the point
         of beginning.
Mojave Desert Air Basin........  ..............  Attainment/
                                                  Unclassifiable.
    Kern County (part).........

[[Page 1109]]

 
        That portion of Kern
         County east and south
         of a line described as
         follows: Beginning at
         the Kern-Los Angeles
         County boundary and
         running north and east
         along the northwest
         boundary of the Rancho
         La Libre Land Grant to
         the point of
         intersection with the
         range line common to
         R. 16 W. and R. 17 W.,
         San Bernardino Base
         and Meridian; north
         along the range line
         to the point of
         intersection with the
         Rancho El Tejon Land
         Grant boundary; then
         southeast, northeast,
         and northwest along
         the boundary of the
         Rancho El Tejon Land
         Grantto the northwest
         corner of S. 3, T. 11
         N., R. 17 W.; then
         west 1.2 miles; then
         north to the Rancho El
         Tejon Land Grant
         boundary; then
         northwest along the
         Rancho El Tejon line
         to the southeast
         corner of S. 34, T. 32
         S., R. 30 E., Mount
         Diablo Base and
         Meridian; then north
         to the northwest
         corner of S. 35, T. 31
         S., R. 30 E.; then
         northeast along the
         boundary of the Rancho
         El Tejon Land Grantto
         the southwest corner
         of S. 18, T. 31 S., R.
         31 E.; then east to
         the southeast corner
         of S. 13, T. 31 S., R.
         31 E.; then north
         along the range line
         common to R. 31 E. and
         R. 32 E., Mount Diablo
         Base and Meridian, to
         the northwest corner
         of S. 6, T. 29 S., R.
         32 E.; then east to
         the southwest corner
         of S. 31 T. 28 S., R.
         32E.; then north along
         the range line common
         to R. 31 E. and R. 32
         E. to the northwest
         corner of S. 6, T. 28
         S., R. 32 E., then
         west to the southeast
         corner of S. 36, T. 27
         S., R. 31 E., then
         north along the range
         line common to R. 31
         E. and R. 32 E. to the
         Kern-Tulare County
         boundary.
    Los Angeles County (part)..
        That portion of Los
         Angeles County which
         lies north and east of
         a line described as
         follows: Beginning at
         the Los Angeles-San
         Bernardino County
         boundary and running
         west along the
         township line common
         to T. 3 N and T. 2 N,
         San Bernardino Base
         and Meridian; then
         north along the range
         line common to R. 8 W
         and R. 9 W; then west
         along the township
         line common to T. 4 N
         and T. 3 N; then north
         along the range line
         common to R. 12 W and
         R. 13 W to the
         southeast corner of
         Section 12, T. 5 N, R.
         13 W; then west along
         the south boundaries
         of Sections 12, 11,
         10, 9, 8, 7, T. 5 N,
         R. 13 W to the
         boundary of the
         Angeles National
         Forest which is
         collinear with the
         range line common to
         R. 13 W and R. 14 W;
         then north and west
         along the Angeles
         National Forest
         boundary to the point
         of intersection with
         the township line
         common to T. 7 N and
         T. 6 N (point is at
         the northwest corner
         of Section 4 in T. 6
         N, R. 14 W); then west
         along the township
         line common to T. 7 N
         and T. 6 N; then north
         along the range line
         common to R. 15 W and
         R. 16 W to the
         southeast corner of
         Section 13, T. 7 N, R.
         16 W; then along the
         south boundaries of
         Sections 13, 14, 15,
         16, 17, 18, T. 7 N, R.
         16 W; then north along
         the range line common
         to R. 16 W and R. 17 W
         to the north boundary
         of the Angeles
         National Forest
         (collinear with
         township line common
         to T. 8 N and T. 7 N)
         then west and north
         along the Angeles
         National Forest
         boundary to the point
         of intersection with
         the south boundary of
         the Rancho La Liebre
         Land Grant; then west
         and north along this
         land grant boundary to
         the Los Angeles-Kern
         County boundary.
    Riverside County (part)....
        That portion of
         Riverside County which
         lies east of a line
         described as follows:
         That segment of the
         southwestern boundary
         line of Hydrologic
         Unit Number 18100100
         within Riverside
         County, further
         described as follows:
         Beginning at the
         Riverside-Imperial
         County boundary and
         running north along
         the range line common
         to R. 17 E. and R. 16
         E., San Bernardino
         Base and Meridian;
         then northwest along
         the ridge line of the
         Chuckwalla Mountains,
         through T. 8 S., R. 16
         E. and T. 7 S., R. 16
         E., until the Black
         Butte Mountain, elev.
         4504'; then west and
         northwest along the
         ridge line to the
         southwest corner of T.
         5 S., R. 14 E.; then
         north along the range
         line common to R. 14
         E. and R. 13 E.; then
         west and northwest
         along the ridge line
         to Monument Mountain,
         elev. 4834'; then
         southwest and then
         northwest along the
         ridge line of the
         Little San Bernardino
         Mountains to Quail
         Mountain, elev. 5814';
         then northwest along
         the ridge line to the
         Riverside-San
         Bernardino County line.
    San Bernardino County
     (part).
        That portion of San
         Bernardino County east
         and north of a line
         described as follows:
         Beginning at the San
         Bernardino-Riverside
         County boundary and
         running north along
         the range line common
         to R. 3 E and R. 2 E,
         San Bernardino Base
         and Meridian; then
         west along the
         township line common
         to T. 3 N and T. 2 N
         to the San Bernardino-
         Los Angeles County
         boundary.
Mountain Counties Air Basin....  ..............  Attainment/
                                                  Unclassifiable.
    Amador County..............
    Calaveras County...........
    El Dorado County (part)....
        All of El Dorado County
         except that portion
         included in the Lake
         Tahoe Air Basin.
    Mariposa County............
    Nevada County..............
    Placer County (part).......
        All of Placer County
         except that portion
         included in the Lake
         Tahoe Air Basin and
         that portion included
         in the Sacramento
         Valley Air Basin.
    Plumas County..............
    Sierra County..............
    Tuolumne County............
North Central Air Basin........  ..............  Attainment/
                                                  Unclassifiable.
    Monterey County............

[[Page 1110]]

 
    San Benito County..........
    Santa Cruz County..........
North Coast Air Basin..........  ..............  Attainment/
                                                  Unclassifiable.
    Del Norte County...........
    Humboldt County............
    Mendocino County...........
    Sonoma County (part).......
        That portion of Sonoma
         County which lies
         north and west of a
         line described as
         follows: Beginning at
         the southeasterly
         corner of the Rancho
         Estero Americano,
         being on the boundary
         line between Marin and
         Sonoma Counties,
         California; thence
         running northerly
         along the easterly
         boundary line of said
         Rancho Estero
         Americano to the
         northeasterly corner
         thereof, being an
         angle corner in the
         westerly boundary line
         of Rancho Canada de
         Jonive; thence running
         along said boundary of
         Rancho Canada de
         Jonive westerly,
         northerly and easterly
         to its intersection
         with the easterly line
         of Graton Road; thence
         running along the
         easterly and southerly
         line of Graton Road,
         northerly and easterly
         to its intersection
         with the easterly line
         of Sullivan Road;
         thence running
         northerly along said
         easterly line of
         Sullivan Road to the
         southerly line of
         Green Valley Road;
         thence running
         easterly along the
         said southerly line of
         Green Valley Road and
         easterly along the
         southerly line of
         State Highway 116, to
         the westerly line of
         Vine Hill Road; thence
         running along the
         westerly and northerly
         line of Vine Hill
         Road, northerly and
         easterly to its
         intersection with the
         westerly line of
         Laguna Road; thence
         running northerly
         along the westerly
         line of Laguna Road
         and the northerly
         projection thereof to
         the northerly line of
         Trenton Road; thence
         running westerly along
         the northerly line of
         said Trenton Road to
         the easterly line of
         Trenton-Healdsburg
         Road; thence running
         northerly along said
         easterly line of
         Trenton-Healdsburg
         Road to the easterly
         line of Eastside Road;
         thence running
         northerly along said
         easterly line of
         Eastside Road to its
         intersection with the
         southerly line of
         Rancho Sotoyome;
         thence running
         easterly along said
         southerly line of
         Rancho Sotoyome to its
         intersection with the
         Township line common
         to Townships 8 and 9
         North, M.D.M.; thence
         running easterly along
         said township line to
         its intersection with
         the boundary line
         between Sonoma and
         Napa Counties, State
         of California.
    Trinity County.............
Northeast Plateau Air Basin....  ..............  Attainment/
                                                  Unclassifiable.
    Lassen County..............
    Modoc County...............
    Siskiyou County............
Sacramento Valley Air Basin....  ..............  Attainment/
                                                  Unclassifiable.
    Butte County...............
    Colusa County..............
    Glenn County...............
    Placer County (part).......
        That portion of Placer
         County which lies west
         of Range 9 east,
         M.D.B. & M.
    Sacramento County..........
    Shasta County..............
    Solano County (part).......
        That portion of Solano
         County which lies
         north and east of a
         line described as
         follows: Beginning at
         the intersection of
         the westerly boundary
         of Solano County and
         the 1/4 section line
         running east and west
         through the center of
         Section 34, T6N, R2W,
         M.D.B. & M., thence
         east along said 1/4
         section line to the
         east boundary of
         Section 36, T6N, R2W,
         thence south 1/2 mile
         and east 2.0 miles,
         more or less, along
         the west and south
         boundary of Los Putos
         Rancho to the
         northwest corner of
         Section 4, T5N, R1W,
         thence east along a
         line common to T5N and
         T6N to the northeast
         corner of Section 3,
         T5N, R1E, thence south
         along section lines to
         the southeast corner
         of Section 10, T3N,
         R1E, thence east along
         section lines to the
         south 1/4 corner of
         Section 8, T3N, R2E,
         thence east to the
         boundary between
         Solano and Sacramento
         Counties.
    Sutter County..............
    Tehama County..............
    Yolo County................
    Yuba County................
Salton Sea Air Basin...........  ..............  Attainment/
                                                  Unclassifiable.
    Imperial County............
    Riverside County (part)....

[[Page 1111]]

 
        That portion of
         Riverside County which
         lies east of a line
         described as follows:
         Beginning at the
         Riverside-San Diego
         County boundary and
         running north along
         the range line common
         to R. 4 E and R. 3 E;
         then east along the
         township line common
         to T. 8 S and T. 7 S;
         then north along the
         range line common to
         R. 5 E and R. 4 E;
         then west along the
         township line common
         to T. 6 S and T. 7 S
         to the southwest
         corner of Section 34,
         T. 6 S, R. 4 E; then
         north along the west
         boundaries of Sections
         34, 27, 22, 15, 10, 3,
         T. 6 S, R. 4 E; then
         west along the
         township line common
         to T. 5 S and T. 6 S;
         then north along the
         range line common to
         R. 4 E and R. 3 E;
         then west along the
         south boundaries of
         Sections 13, 14, 15,
         16, 17 and 18, T. 5 S.
         R. 3 E; then north
         along the range line
         common to R. 2 E and
         R. 3 E to the
         Riverside-San
         Bernardino County
         line; and west of a
         line described as
         follows: That segment
         of the southwestern
         boundary line of
         Hydrologic Unit Number
         18100100 within
         Riverside County,
         further described as
         follows: Beginning at
         the Riverside-Imperial
         County boundary and
         running north along
         the range line common
         to R. 17 E. and R. 16
         E., San Bernardino
         Base and Meridian;
         then northwest along
         the ridge line of the
         Chuckwalla Mountains,
         through T. 8 S., R. 16
         E. and T. 7 S., R. 16
         E., until the Black
         Butte Mountain, elev.
         4504'; then west and
         northwest along the
         ridge line to the
         southwest corner of T.
         5 S., R. 14 E.; then
         north along the range
         line common to R. 14
         E. and R. 13 E.; then
         west and northwest
         along the ridge line
         to Monument Mountain,
         elev. 4834'; then
         southwest and then
         northwest along the
         ridge line of the
         Little San Bernardino
         Mountains to Quail
         Mountain, elev. 5814';
         then northwest along
         the ridge line to the
         Riverside-San
         Bernardino County line.
San Diego Air Basin............  ..............  Attainment/
                                                  Unclassifiable.
    San Diego County...........
San Francisco Bay Area Air       ..............  Attainment/
 Basin.                                           Unclassifiable.
    Alameda County.............
    Contra Costa County........
    Marin County...............
    Napa County................
    San Francisco County.......
    San Mateo County...........
    Santa Clara County.........
    Solano County (part).......
        That portion of Solano
         County which lies
         south and west of a
         line described as
         follows: Beginning at
         the intersection of
         the westerly boundary
         of Solano County and
         the 1/4 section line
         running east and west
         through the center of
         Section 34, T6N, R2W,
         M.D.B. & M., thence
         east along said 1/4
         section line to the
         east boundary of
         Section 36, T6N, R2W,
         thence south 1/2 mile
         and east 2.0 miles,
         more or less, along
         the west and south
         boundary of Los Putos
         Rancho to the
         northwest corner of
         Section 4, T5N, R1W,
         thence east along a
         line common to T5N and
         T6N to the northeast
         corner of Section 3,
         T5N, R1E, thence south
         along section lines to
         the southeast corner
         of Section 10, T3N,
         R1E, thence east along
         section lines to the
         south 1/4 corner of
         Section 8, T3N, R2E,
         thence east to the
         boundary between
         Solano and Sacramento
         Counties.
    Sonoma County (part).......
        That portion of Sonoma
         County which lies
         south and east of a
         line described as
         follows: Beginning at
         the southeasterly
         corner of the Rancho
         Estero Americano,
         being on the boundary
         line between Marin and
         Sonoma Counties,
         California; thence
         running northerly
         along the easterly
         boundary line of said
         Rancho Estero
         Americano to the
         northeasterly corner
         thereof, being an
         angle corner in the
         westerly boundary line
         of Rancho Canada de
         Jonive; thence running
         along said boundary of
         Rancho Canada de
         Jonive westerly,
         northerly and easterly
         to its intersection
         with the easterly line
         of Graton Road; thence
         running along the
         easterly and southerly
         line of Graton Road,
         northerly and easterly
         to its intersection
         with the easterly line
         of Sullivan Road;
         thence running
         northerly along said
         easterly line of
         Sullivan Road to the
         southerly line of
         Green Valley Road;
         thence running
         easterly along the
         said southerly line of
         Green Valley Road and
         easterly along the
         southerly line of
         State Highway 116, to
         the westerly line of
         Vine Hill Road; thence
         running along the
         westerly and northerly
         line of Vine Hill
         Road, northerly and
         easterly to its
         intersection with the
         westerly line of
         Laguna Road; thence
         running northerly
         along the westerly
         line of Laguna Road
         and the northerly
         projection thereof to
         the northerly line of
         Trenton Road; thence
         running westerly along
         the northerly line of
         said Trenton Road to
         the easterly line of
         Trenton-Healdsburg
         Road; thence running
         northerly along said
         easterly line of
         Trenton-Healdsburg
         Road to the easterly
         line of Eastside Road;
         thence running
         northerly along said
         easterly line of
         Eastside Road to its
         intersection with the
         southerly line of
         Rancho Sotoyome;
         thence running
         easterly along said
         southerly line of
         Rancho Sotoyome to its
         intersection with the
         Township line common
         to Townships 8 and 9
         North, M.D.M.; thence
         running easterly along
         said township line to
         its intersection with
         the boundary line
         between Sonoma and
         Napa Counties, State
         of California.
San Joaquin Valley Air Basin...  ..............  Attainment/
                                                  Unclassifiable.
    Fresno County..............
    Kern County (part).........

[[Page 1112]]

 
        That portion of Kern
         County which lies west
         and north of a line
         described as follows:
         Beginning at the Kern-
         Los Angeles County
         boundary and running
         north and east along
         the northwest boundary
         of the Rancho La Libre
         Land Grant to the
         point of intersection
         with the range line
         common to R. 16 W. and
         R. 17 W., San
         Bernardino Base and
         Meridian; north along
         the range line to the
         point of intersection
         with the Rancho El
         Tejon Land Grant
         boundary; then
         southeast, northeast,
         and northwest along
         the boundary of the
         Rancho El Tejon Land
         Grant to the northwest
         corner of S. 3, T. 11
         N., R. 17 W.; then
         west 1.2 miles; then
         north to the Rancho El
         Tejon Land Grant
         boundary; then
         northwest along the
         Rancho El Tejon line
         to the southeast
         corner of S. 34, T. 32
         S., R. 30 E., Mount
         Diablo Base and
         Meridian; then north
         to the northwest
         corner of S. 35, T. 31
         S., R. 30 E.; then
         northeast along the
         boundary of the Rancho
         El Tejon Land Grant to
         the southwest corner
         of S. 18, T. 31 S., R.
         31 E.; then east to
         the southeast corner
         of S. 13, T. 31 S., R.
         31 E.; then north
         along the range line
         common to R. 31 E. and
         R. 32 E., Mount Diablo
         Base and Meridian, to
         the northwest corner
         of S. 6, T. 29 S., R.
         32 E.; then east to
         the southwest corner
         of S. 31, T. 28 S., R.
         32 E.; then north
         along the range line
         common to R. 31 E. and
         R. 32 E. to the
         northwest corner of S.
         6, T. 28 S., R. 32 E.,
         then west to the
         southeast corner of S.
         36, T. 27 S., R. 31
         E., then north along
         the range line common
         to R. 31 E. and R. 32
         E. to the Kern-Tulare
         County boundary.
    Kings County...............
    Madera County..............
    Merced County..............
    San Joaquin County.........
    Stanislaus County..........
    Tulare County..............
South Central Air Basin........  ..............  Attainment/
                                                  Unclassifiable.
    San Luis Obispo County.....
    Santa Barbara County.......
    Ventura County.............
South Coast Air Basin..........  ..............  Attainment/
                                                  Unclassifiable.
    Los Angeles County (part)..
        That portion of Los
         Angeles County which
         lies south and west of
         a line described as
         follows: Beginning at
         the Los Angeles-San
         Bernardino County
         boundary and running
         west along the
         township line common
         to T.3 N and T.2 N,
         San Bernardino Base
         and Meridian; then
         north along the range
         line common to R.8 W
         and R.9 W; then west
         along the township
         line common to T.4 N
         and T.3 N; then north
         along the range line
         common to R.12 W and
         R.13 W to the
         southeast corner of
         Section 12, T.5 N, R.
         13 W; then west along
         the south boundaries
         of Sections 12, 11,
         10, 9, 8, 7, T.5 N, R.
         13 W to the boundary
         of the Angeles
         National Forest which
         is collinear with the
         range line common to
         R. 13 W and R. 14 W;
         then north and west
         along the Angeles
         National Forest
         boundary to the point
         of intersection with
         the township line
         common to T.7 N and T.
         6 N (point is at the
         northwest corner of
         Section 4 in T.6 N, R.
         14 W); then west along
         the township line
         common to T.7 N and
         T.6 N; then north
         along the range line
         common to R. 15 W and
         R. 16 W to the
         southeast corner of
         Section 13, T.7 N, R.
         16 W; then along the
         south boundaries of
         Sections 13, 14, 15,
         16, 17, 18, T.7 N, R.
         16 W; then north along
         the range line common
         to R.16 W and R. 17 W
         to the north boundary
         of the Angeles
         National Forest
         (collinear with
         township line common
         to T.8 N and T.7 N);
         then west and north
         along the Angeles
         National Forest
         boundary to the point
         of intersection with
         the south boundary of
         the Rancho La Liebre
         Land Grant; then west
         and north along this
         land grant boundary to
         the Los Angeles-Kern
         County boundary.
    Orange County..............
    Riverside County (part)....
        That portion of
         Riverside County which
         lies west of a line
         described as follows:
         Beginning at the
         Riverside-San Diego
         County boundary and
         running north along
         the range line common
         to R. 4 E and R. 3 E;
         then east along the
         township line common
         to T. 8 S and T. 7 S;
         then north along the
         range line common to
         R. 5 E and R. 4 E;
         then west along the
         township line common
         to T. 6 S and T. 7 S
         to the southwest
         corner of Section 34,
         T. 6 S, R. 4 E; then
         north along the west
         boundaries of Sections
         34, 27, 22, 15, 10, 3,
         T. 6 S, R. 4 E; then
         west along the
         township line common
         to T. 5 S and T. 6 S;
         then north along the
         range line common to
         R. 4 E and R. 3 E;
         then west along the
         south boundaries of
         Sections 13, 14, 15,
         16, 17 and 18, T. 5 S.
         R. 3 E; then north
         along the range line
         common to R. 2 E and
         R. 3 E to the
         Riverside-San
         Bernardino County line.
    San Bernardino County
     (part).
        That portion of San
         Bernardino County west
         and south of a line
         described as follows:
         Beginning at the San
         Bernardino-Riverside
         County boundary and
         running north along
         the range line common
         to R. 3 E and R. 2 E;
         then west along the
         township line common
         to T. 3 N and T. 2 N
         to the San Bernardino-
         Los Angeles County
         boundary.
------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise
  specified. EPA is not determining the boundaries of any area of Indian
  country in this table, including any area of Indian country located in
  the larger designation area. The inclusion of any Indian country in
  the designation area is not a determination that the state has
  regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.


[[Page 1113]]

* * * * *

0
7. Section 81.306 is amended by revising the table entitled 
``Colorado--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.306   Colorado.

* * * * *

                                  Colorado--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \3\                             Type
----------------------------------------------------------------------------------------------------------------
Colorado Springs, CO.......................         9/12/16  Unclassifiable.
    El Paso County (part)
        Manitou Springs
        Colorado Springs (and certain
         unincorporated areas) as follows;
         Areas east of the western city
         limits of Colorado Springs, north
         of the southern city limits of
         Colorado Springs with the addition
         of the area termed ``Stratmoor''
         bounded on the south by South
         Academy Boulevard, west of Powers
         Blvd, and south of East Woodman
         Blvd (east of Academy Blvd. N) and
         the northern city limits of
         Colorado Springs (west of Academy
         Blvd. N).
Eastern Morgan County, CO..................         9/12/16  Unclassifiable.
    Morgan County (part)
        Circle with a 12-kilometer radius
         centered on the Pawnee Power Plant
State AQCR 01 (remainder)..................  ..............  Attainment/Unclassifiable.
    Logan County
    Morgan County (part) (remainder)
    Phillips County
    Sedgwick County
    Washington County
    Yuma County
State AQCR 02..............................  ..............  Attainment/Unclassifiable.
    Larimer County
    Weld County
State AQCR 03..............................  ..............  Attainment/Unclassifiable.
    Adams County
    Arapahoe County
    Boulder County
    Broomfield County
    Clear Creek County
    Denver County
    Douglas County
    Gilpin County
    Jefferson County
State AQCR 04 (remainder)..................  ..............  Attainment/Unclassifiable.
    El Paso County (part) (remainder)
    Park County
    Teller County
State AQCR 05..............................  ..............  Attainment/Unclassifiable.
    Cheyenne County
    Elbert County
    Kit Carson County
    Lincoln County
State AQCR 06..............................  ..............  Attainment/Unclassifiable.
    Baca County
    Bent County
    Crowley County
    Kiowa County
    Otero County
    Prowers County
State AQCR 07..............................  ..............  Attainment/Unclassifiable.
    Huerfano
    Las Animas
    Pueblo
State AQCR 08..............................  ..............  Attainment/Unclassifiable.
    Alamosa County
    Conejos County
    Costilla County
    Mineral County
    Rio Grande County
    Saguache County
State AQCR 09..............................  ..............  Attainment/Unclassifiable.
    Archuleta County \2\
    Dolores
    La Plata \2\
    Montezuma \2\
    San Juan
State AQCR 10..............................  ..............  Attainment/Unclassifiable.

[[Page 1114]]

 
    Delta County
    Gunnison County
    Hinsdale County
    Montrose County
    Ouray County
    San Miguel County
State AQCR 11..............................  ..............  Attainment/Unclassifiable.
    Garfield County
    Mesa County
    Moffat County
    Rio Blanco County
State AQCR 12..............................  ..............  Attainment/Unclassifiable.
    Eagle County
    Grand County
    Jackson County
    Pitkin County
    Routt County
    Summit County
State AQCR 13..............................  ..............  Attainment/Unclassifiable.
    Chaffee County
    Custer County
    Fremont County
    Lake County
Southern Ute Indian Reservation............  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ Does not include the Southern Ute Indian Reservation, which is being designated separately.
\3\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
8. Section 81.307 is amended by adding a table entitled ``Connecticut--
2010 Sulfur Dioxide NAAQS (Primary)'' following the table 
``Connecticut--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to 
read as follows:


Sec.  81.307   Connecticut.

* * * * *

                                Connecticut--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
State of Connecticut.......................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
9. Section 81.308 is amended by adding a new table entitled 
``Delaware--2010 Sulfur Dioxide NAAQS (Primary)'' following the table 
``Delaware--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to read 
as follows:


Sec.  81.308   Delaware.

* * * * *

                                  Delaware--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Entire State...............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.


[[Page 1115]]

* * * * *

0
10. Section 81.309 is amended by adding a table titled ``District of 
Columbia--2010 Sulfur Dioxide NAAQS (Primary)'' following the table 
titled ``District of Columbia--1971 Sulfur Dioxide NAAQS (Primary and 
Secondary)'' to read as follows:


Sec.  81.309   District of Columbia.

* * * * *

                            District of Columbia--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
District of Columbia.......................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
11. Section 81.310 is amended by revising the table entitled 
``Florida--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.310  Florida.

* * * * *

                                  Florida--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
              Designated area               --------------------------------------------------------------------
                                                Date \1\                             Type
----------------------------------------------------------------------------------------------------------------
Hillsborough County, FL \2\................         10/4/13  Nonattainment.
    Hillsborough County (part)
        That portion of Hillsborough County
         encompassed by the polygon with
         the vertices using Universal
         Traverse Mercator (UTM)
         coordinates in UTM zone 17 with
         datum NAD83 as follows: (1)
         Vertices-UTM Easting (m) 358581,
         UTM Northing 3076066; (2) vertices-
         UTM Easting (m) 355673, UTM
         Northing 3079275; (3) UTM Easting
         (m) 360300, UTM Northing 3086380;
         (4) vertices-UTM Easting (m)
         366850, UTM Northing 3086692; (5)
         vertices-UTM Easting (m) 368364,
         UTM Northing 3083760; and (6)
         vertices-UTM Easting (m) 365708,
         UTM Northing 3079121
Hillsborough--Polk County, FL \3\..........  ..............  Nonattainment.
    Hillsborough County (part)
    Polk County (part)
        That portion of Hillsborough and
         Polk Counties encompassed by the
         polygon with the vertices using
         Universal Traverse Mercator (UTM)
         coordinates in UTM zone 17 with
         datum NAD83 as follows: 390,500 E,
         3,073,500 N; 390,500 E, 3,083,500
         N; 400,500 E, 3,083,500 N; 400,500
         E, 3,073,500 N
Nassau County, FL \2\......................         10/4/13  Nonattainment.
    Nassau County (part)
        That portion of Nassau County
         encompassing the circular boundary
         with the center being UTM Easting
         455530 meters, UTM Northing
         3391737 meters, UTM zone 17, using
         the NAD83 datum (the location of
         the violating ambient monitor) and
         the radius being 2.4 kilometers
Citrus County, FL \3\......................  ..............  Unclassifiable.
    Citrus County (part)
        Census Block Groups 4504004 and
         4505002
Mulberry, FL Area \3\......................  ..............  Unclassifiable.
    Hillsborough County (part)
    Polk County (part)
        That portion of Hillsborough and
         Polk Counties encompassed by the
         polygon with the vertices using
         Universal Traverse Mercator (UTM)
         coordinates in UTM zone 17 with
         datum NAD83 starting with the
         Northwest Corner and proceeding to
         the Northeast as follows: 390,500
         E, 3,083,500 N; 410,700 E,
         3,091,600 N; 412,900 E, 3,089,800
         N; 412,900 E, 3,084,600 N; 400,500
         E, 3,073,500 N; 400,500 E,
         3,083,500 N
Rest of State: \3\
    Alachua County.........................  ..............  Attainment/Unclassifiable.
    Baker County...........................  ..............  Attainment/Unclassifiable.
    Bay County.............................  ..............  Attainment/Unclassifiable.
    Bradford County........................  ..............  Attainment/Unclassifiable.
    Brevard County.........................  ..............  Attainment/Unclassifiable.
    Broward County.........................  ..............  Attainment/Unclassifiable.
    Calhoun County.........................  ..............  Attainment/Unclassifiable.
    Charlotte County.......................  ..............  Attainment/Unclassifiable.
    Citrus County (part) (remainder).......  ..............  Attainment/Unclassifiable.
    Clay County............................  ..............  Attainment/Unclassifiable.
    Collier County.........................  ..............  Attainment/Unclassifiable.
    Columbia County........................  ..............  Attainment/Unclassifiable.

[[Page 1116]]

 
    DeSoto County..........................  ..............  Attainment/Unclassifiable.
    Dixie County...........................  ..............  Attainment/Unclassifiable.
    Duval County...........................  ..............  Attainment/Unclassifiable.
    Escambia County........................  ..............  Attainment/Unclassifiable.
    Flagler County.........................  ..............  Attainment/Unclassifiable.
    Franklin County........................  ..............  Attainment/Unclassifiable.
    Gadsden County.........................  ..............  Attainment/Unclassifiable.
    Gilchrist County.......................  ..............  Attainment/Unclassifiable.
    Glades County..........................  ..............  Attainment/Unclassifiable.
    Gulf County............................  ..............  Attainment/Unclassifiable.
    Hamilton County........................  ..............  Attainment/Unclassifiable.
    Hardee County..........................  ..............  Attainment/Unclassifiable.
    Hendry County..........................  ..............  Attainment/Unclassifiable.
    Hernando County........................  ..............  Attainment/Unclassifiable.
    Highlands County.......................  ..............  Attainment/Unclassifiable.
    Hillsborough County (part) (remainder).  ..............  Attainment/Unclassifiable.
    Holmes County..........................  ..............  Attainment/Unclassifiable.
    Indian River County....................  ..............  Attainment/Unclassifiable.
    Jackson County.........................  ..............  Attainment/Unclassifiable.
    Jefferson County.......................  ..............  Attainment/Unclassifiable.
    Lafayette County.......................  ..............  Attainment/Unclassifiable.
    Lake County............................  ..............  Attainment/Unclassifiable.
    Lee County.............................  ..............  Attainment/Unclassifiable.
    Leon County............................  ..............  Attainment/Unclassifiable.
    Levy County............................  ..............  Attainment/Unclassifiable.
    Liberty County.........................  ..............  Attainment/Unclassifiable.
    Madison County.........................  ..............  Attainment/Unclassifiable.
    Manatee County.........................  ..............  Attainment/Unclassifiable.
    Marion County..........................  ..............  Attainment/Unclassifiable.
    Martin County..........................  ..............  Attainment/Unclassifiable.
    Miami-Dade County......................  ..............  Attainment/Unclassifiable.
    Monroe County..........................  ..............  Attainment/Unclassifiable.
    Nassau County (part) (remainder).......  ..............  Attainment/Unclassifiable.
    Okaloosa County........................  ..............  Attainment/Unclassifiable.
    Okeechobee County......................  ..............  Attainment/Unclassifiable.
    Orange County..........................  ..............  Attainment/Unclassifiable.
    Osceola County.........................  ..............  Attainment/Unclassifiable.
    Palm Beach County......................  ..............  Attainment/Unclassifiable.
    Pasco County...........................  ..............  Attainment/Unclassifiable.
    Pinellas County........................  ..............  Attainment/Unclassifiable.
    Polk County (part) (remainder).........  ..............  Attainment/Unclassifiable.
    Putnam County..........................  ..............  Attainment/Unclassifiable.
    St. Johns County.......................  ..............  Attainment/Unclassifiable.
    St. Lucie County.......................  ..............  Attainment/Unclassifiable.
    Santa Rosa County......................  ..............  Attainment/Unclassifiable.
    Sarasota County........................  ..............  Attainment/Unclassifiable.
    Seminole County........................  ..............  Attainment/Unclassifiable.
    Sumter County..........................  ..............  Attainment/Unclassifiable.
    Suwannee County........................  ..............  Attainment/Unclassifiable.
    Taylor County..........................  ..............  Attainment/Unclassifiable.
    Union County...........................  ..............  Attainment/Unclassifiable.
    Volusia County.........................  ..............  Attainment/Unclassifiable.
    Wakulla County.........................  ..............  Attainment/Unclassifiable.
    Walton County..........................  ..............  Attainment/Unclassifiable.
    Washington County......................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ This date is April 9, 2018, unless otherwise noted.
\2\ Excludes Indian country located in each area, if any, unless otherwise specified.
\3\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.

* * * * *

0
12. Section 81.311 is amended by revising the table entitled 
``Georgia--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.311   Georgia.

* * * * *

[[Page 1117]]



                                  Georgia--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
          Designated area \1\ \3\           --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Juliette, GA...............................         9/12/16  Attainment/Unclassifiable.
    Butts County
    Crawford County
    Jasper County
    Jones County
    Lamar County
    Monroe County
    Upson County
Rest of State: \3\
    Appling County.........................  ..............  Attainment/Unclassifiable.
    Atkinson County........................  ..............  Attainment/Unclassifiable.
    Bacon County...........................  ..............  Attainment/Unclassifiable.
    Baker County...........................  ..............  Attainment/Unclassifiable.
    Baldwin County.........................  ..............  Attainment/Unclassifiable.
    Banks County...........................  ..............  Attainment/Unclassifiable.
    Barrow County..........................  ..............  Attainment/Unclassifiable.
    Bartow County..........................  ..............  Attainment/Unclassifiable.
    Ben Hill County........................  ..............  Attainment/Unclassifiable.
    Berrien County.........................  ..............  Attainment/Unclassifiable.
    Bibb County............................  ..............  Attainment/Unclassifiable.
    Bleckley County........................  ..............  Attainment/Unclassifiable.
    Brantley County........................  ..............  Attainment/Unclassifiable.
    Brooks County..........................  ..............  Attainment/Unclassifiable.
    Bryan County...........................  ..............  Attainment/Unclassifiable.
    Bulloch County.........................  ..............  Attainment/Unclassifiable.
    Burke County...........................  ..............  Attainment/Unclassifiable.
    Calhoun County.........................  ..............  Attainment/Unclassifiable.
    Camden County..........................  ..............  Attainment/Unclassifiable.
    Candler County.........................  ..............  Attainment/Unclassifiable.
    Carroll County.........................  ..............  Attainment/Unclassifiable.
    Catoosa County.........................  ..............  Attainment/Unclassifiable.
    Charlton County........................  ..............  Attainment/Unclassifiable.
    Chatham County.........................  ..............  Attainment/Unclassifiable.
    Chattahoochee County...................  ..............  Attainment/Unclassifiable.
    Chattooga County.......................  ..............  Attainment/Unclassifiable.
    Cherokee County........................  ..............  Attainment/Unclassifiable.
    Clarke County..........................  ..............  Attainment/Unclassifiable.
    Clay County............................  ..............  Attainment/Unclassifiable.
    Clayton County.........................  ..............  Attainment/Unclassifiable.
    Clinch County..........................  ..............  Attainment/Unclassifiable.
    Cobb County............................  ..............  Attainment/Unclassifiable.
    Coffee County..........................  ..............  Attainment/Unclassifiable.
    Colquitt County........................  ..............  Attainment/Unclassifiable.
    Columbia County........................  ..............  Attainment/Unclassifiable.
    Cook County............................  ..............  Attainment/Unclassifiable.
    Coweta County..........................  ..............  Attainment/Unclassifiable.
    Crisp County...........................  ..............  Attainment/Unclassifiable.
    Dade County............................  ..............  Attainment/Unclassifiable.
    Dawson County..........................  ..............  Attainment/Unclassifiable.
    Decatur County.........................  ..............  Attainment/Unclassifiable.
    DeKalb County..........................  ..............  Attainment/Unclassifiable.
    Dodge County...........................  ..............  Attainment/Unclassifiable.
    Dooly County...........................  ..............  Attainment/Unclassifiable.
    Dougherty County.......................  ..............  Attainment/Unclassifiable.
    Douglas County.........................  ..............  Attainment/Unclassifiable.
    Early County...........................  ..............  Attainment/Unclassifiable.
    Echols County..........................  ..............  Attainment/Unclassifiable.
    Effingham County.......................  ..............  Attainment/Unclassifiable.
    Elbert County..........................  ..............  Attainment/Unclassifiable.
    Emanuel County.........................  ..............  Attainment/Unclassifiable.
    Evans County...........................  ..............  Attainment/Unclassifiable.
    Fannin County..........................  ..............  Attainment/Unclassifiable.
    Fayette County.........................  ..............  Attainment/Unclassifiable.
    Forsyth County.........................  ..............  Attainment/Unclassifiable.
    Franklin County........................  ..............  Attainment/Unclassifiable.
    Fulton County..........................  ..............  Attainment/Unclassifiable.
    Gilmer County..........................  ..............  Attainment/Unclassifiable.
    Glascock County........................  ..............  Attainment/Unclassifiable.
    Glynn County...........................  ..............  Attainment/Unclassifiable.
    Gordon County..........................  ..............  Attainment/Unclassifiable.

[[Page 1118]]

 
    Grady County...........................  ..............  Attainment/Unclassifiable.
    Greene County..........................  ..............  Attainment/Unclassifiable.
    Gwinnett County........................  ..............  Attainment/Unclassifiable.
    Habersham County.......................  ..............  Attainment/Unclassifiable.
    Hall County............................  ..............  Attainment/Unclassifiable.
    Hancock County.........................  ..............  Attainment/Unclassifiable.
    Harris County..........................  ..............  Attainment/Unclassifiable.
    Hart County............................  ..............  Attainment/Unclassifiable.
    Heard County...........................  ..............  Attainment/Unclassifiable.
    Henry County...........................  ..............  Attainment/Unclassifiable.
    Houston County.........................  ..............  Attainment/Unclassifiable.
    Irwin County...........................  ..............  Attainment/Unclassifiable.
    Jackson County.........................  ..............  Attainment/Unclassifiable.
    Jeff Davis County......................  ..............  Attainment/Unclassifiable.
    Jefferson County.......................  ..............  Attainment/Unclassifiable.
    Jenkins County.........................  ..............  Attainment/Unclassifiable.
    Johnson County.........................  ..............  Attainment/Unclassifiable.
    Lanier County..........................  ..............  Attainment/Unclassifiable.
    Laurens County.........................  ..............  Attainment/Unclassifiable.
    Lee County.............................  ..............  Attainment/Unclassifiable.
    Liberty County.........................  ..............  Attainment/Unclassifiable.
    Lincoln County.........................  ..............  Attainment/Unclassifiable.
    Long County............................  ..............  Attainment/Unclassifiable.
    Lowndes County.........................  ..............  Attainment/Unclassifiable.
    Lumpkin County.........................  ..............  Attainment/Unclassifiable.
    Macon County...........................  ..............  Attainment/Unclassifiable.
    Madison County.........................  ..............  Attainment/Unclassifiable.
    Marion County..........................  ..............  Attainment/Unclassifiable.
    McDuffie County........................  ..............  Attainment/Unclassifiable.
    McIntosh County........................  ..............  Attainment/Unclassifiable.
    Miller County..........................  ..............  Attainment/Unclassifiable.
    Mitchell County........................  ..............  Attainment/Unclassifiable.
    Montgomery County......................  ..............  Attainment/Unclassifiable.
    Morgan County..........................  ..............  Attainment/Unclassifiable.
    Murray County..........................  ..............  Attainment/Unclassifiable.
    Muscogee County........................  ..............  Attainment/Unclassifiable.
    Newton County..........................  ..............  Attainment/Unclassifiable.
    Oconee County..........................  ..............  Attainment/Unclassifiable.
    Oglethorpe County......................  ..............  Attainment/Unclassifiable.
    Paulding County........................  ..............  Attainment/Unclassifiable.
    Peach County...........................  ..............  Attainment/Unclassifiable.
    Pickens County.........................  ..............  Attainment/Unclassifiable.
    Pierce County..........................  ..............  Attainment/Unclassifiable.
    Pike County............................  ..............  Attainment/Unclassifiable.
    Polk County............................  ..............  Attainment/Unclassifiable.
    Pulaski County.........................  ..............  Attainment/Unclassifiable.
    Putnam County..........................  ..............  Attainment/Unclassifiable.
    Quitman County.........................  ..............  Attainment/Unclassifiable.
    Rabun County...........................  ..............  Attainment/Unclassifiable.
    Randolph County........................  ..............  Attainment/Unclassifiable.
    Richmond County........................  ..............  Attainment/Unclassifiable.
    Rockdale County........................  ..............  Attainment/Unclassifiable.
    Schley County..........................  ..............  Attainment/Unclassifiable.
    Screven County.........................  ..............  Attainment/Unclassifiable.
    Seminole County........................  ..............  Attainment/Unclassifiable.
    Spalding County........................  ..............  Attainment/Unclassifiable.
    Stephens County........................  ..............  Attainment/Unclassifiable.
    Stewart County.........................  ..............  Attainment/Unclassifiable.
    Sumter County..........................  ..............  Attainment/Unclassifiable.
    Talbot County..........................  ..............  Attainment/Unclassifiable.
    Taliaferro County......................  ..............  Attainment/Unclassifiable.
    Tattnall County........................  ..............  Attainment/Unclassifiable.
    Taylor County..........................  ..............  Attainment/Unclassifiable.
    Telfair County.........................  ..............  Attainment/Unclassifiable.
    Terrell County.........................  ..............  Attainment/Unclassifiable.
    Thomas County..........................  ..............  Attainment/Unclassifiable.
    Tift County............................  ..............  Attainment/Unclassifiable.
    Toombs County..........................  ..............  Attainment/Unclassifiable.
    Towns County...........................  ..............  Attainment/Unclassifiable.
    Treutlen County........................  ..............  Attainment/Unclassifiable.

[[Page 1119]]

 
    Troup County...........................  ..............  Attainment/Unclassifiable.
    Turner County..........................  ..............  Attainment/Unclassifiable.
    Twiggs County..........................  ..............  Attainment/Unclassifiable.
    Union County...........................  ..............  Attainment/Unclassifiable.
    Walker County..........................  ..............  Attainment/Unclassifiable.
    Walton County..........................  ..............  Attainment/Unclassifiable.
    Ware County............................  ..............  Attainment/Unclassifiable.
    Warren County..........................  ..............  Attainment/Unclassifiable.
    Washington County......................  ..............  Attainment/Unclassifiable.
    Wayne County...........................  ..............  Attainment/Unclassifiable.
    Webster County.........................  ..............  Attainment/Unclassifiable.
    Wheeler County.........................  ..............  Attainment/Unclassifiable.
    White County...........................  ..............  Attainment/Unclassifiable.
    Whitfield County.......................  ..............  Attainment/Unclassifiable.
    Wilcox County..........................  ..............  Attainment/Unclassifiable.
    Wilkes County..........................  ..............  Attainment/Unclassifiable.
    Wilkinson County.......................  ..............  Attainment/Unclassifiable.
    Worth County...........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Floyd County will be designated by December 31, 2020.

* * * * *

0
13. Section 81.312 is amended by revising the table entitled ``Hawaii--
2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.312  Hawaii.

* * * * *

                                   Hawaii--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
          Designated area \1\ \3\           --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Hawaii County..............................         9/12/16  Attainment/Unclassifiable.
Kalawao County.............................  ..............  Attainment/Unclassifiable.
Kauai County...............................  ..............  Attainment/Unclassifiable.
Maui County................................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Honolulu County will be designated by December 31, 2020.

* * * * *

0
14. Section 81.313 is amended by adding a table entitled ``Idaho--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table ``Idaho--1971 
Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.313  Idaho.

* * * * *

                                   Idaho--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Entire State...............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
15. Section 81.314 is amended by revising the table entitled 
``Illinois--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.314   Illinois.

* * * * *

[[Page 1120]]



                                  Illinois--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
          Designated area \1\ \3\           --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Alton Township, IL.........................         9/12/16  Nonattainment.
    Madison County (part)
        Within Alton Township: Area east of
         Corporal Belchik Memorial
         Expressway, south of East
         Broadway, south of Route 3, and
         north of Route 143
Lemont, IL.................................         10/4/13  Nonattainment.
    Cook County (part)
        Lemont Township
    Will County (part)
        DuPage Township and Lockport
         Township
Pekin, IL..................................         10/4/13  Nonattainment.
    Tazewell County (part)
        Cincinnati Township and Pekin
         Township
    Peoria County (part)
        Hollis Township
Williamson County, IL......................         9/12/16  Nonattainment.
    Williamson County
Jasper County, IL..........................         9/12/16  Attainment/Unclassifiable.
    Jasper County
Massac County, IL..........................         9/12/16  Attainment/Unclassifiable.
    Massac County
Putnam/Bureau Counties, IL.................         9/12/16  Attainment/Unclassifiable.
    Bureau County
    Putnam County
Wood River Township, IL....................         9/12/16  Attainment/Unclassifiable.
    Madison County (part)
        All of Wood River Township, and the
         area in Chouteau Township north of
         Cahokia Diversion Channel
Adams County...............................  ..............  Attainment/Unclassifiable.
Alexander County...........................  ..............  Attainment/Unclassifiable.
Bond County................................  ..............  Attainment/Unclassifiable.
Boone County...............................  ..............  Attainment/Unclassifiable.
Brown County...............................  ..............  Attainment/Unclassifiable.
Calhoun County.............................  ..............  Attainment/Unclassifiable.
Carroll County.............................  ..............  Attainment/Unclassifiable.
Cass County................................  ..............  Attainment/Unclassifiable.
Champaign County...........................  ..............  Attainment/Unclassifiable.
Christian County...........................  ..............  Attainment/Unclassifiable.
Clark County...............................  ..............  Attainment/Unclassifiable.
Clay County................................  ..............  Attainment/Unclassifiable.
Clinton County.............................  ..............  Attainment/Unclassifiable.
Coles County...............................  ..............  Attainment/Unclassifiable.
Cook County (part) (remainder).............  ..............  Attainment/Unclassifiable.
Crawford County............................  ..............  Attainment/Unclassifiable.
Cumberland County..........................  ..............  Attainment/Unclassifiable.
De Kalb County.............................  ..............  Attainment/Unclassifiable.
De Witt County.............................  ..............  Attainment/Unclassifiable.
Douglas County.............................  ..............  Attainment/Unclassifiable.
Du Page County.............................  ..............  Attainment/Unclassifiable.
Edgar County...............................  ..............  Attainment/Unclassifiable.
Edwards County.............................  ..............  Attainment/Unclassifiable.
Effingham County...........................  ..............  Attainment/Unclassifiable.
Fayette County.............................  ..............  Attainment/Unclassifiable.
Ford County................................  ..............  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
Fulton County..............................  ..............  Attainment/Unclassifiable.
Gallatin County............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Grundy County..............................  ..............  Attainment/Unclassifiable.
Hamilton County............................  ..............  Attainment/Unclassifiable.
Hancock County.............................  ..............  Attainment/Unclassifiable.
Hardin County..............................  ..............  Attainment/Unclassifiable.
Henderson County...........................  ..............  Attainment/Unclassifiable.
Henry County...............................  ..............  Attainment/Unclassifiable.
Iroquois County............................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Jersey County..............................  ..............  Attainment/Unclassifiable.
Jo Daviess County..........................  ..............  Attainment/Unclassifiable.
Johnson County.............................  ..............  Attainment/Unclassifiable.
Kane County................................  ..............  Attainment/Unclassifiable.

[[Page 1121]]

 
Kankakee County............................  ..............  Attainment/Unclassifiable.
Kendall County.............................  ..............  Attainment/Unclassifiable.
Knox County................................  ..............  Attainment/Unclassifiable.
Lake County................................  ..............  Attainment/Unclassifiable.
La Salle County............................  ..............  Attainment/Unclassifiable.
Lawrence County............................  ..............  Attainment/Unclassifiable.
Lee County.................................  ..............  Attainment/Unclassifiable.
Livingston County..........................  ..............  Attainment/Unclassifiable.
Logan County...............................  ..............  Attainment/Unclassifiable.
McDonough County...........................  ..............  Attainment/Unclassifiable.
McHenry County.............................  ..............  Attainment/Unclassifiable.
McLean County..............................  ..............  Attainment/Unclassifiable.
Macoupin County............................  ..............  Attainment/Unclassifiable.
Madison County (part) (remainder)..........  ..............  Attainment/Unclassifiable.
Marion County..............................  ..............  Attainment/Unclassifiable.
Marshall County............................  ..............  Attainment/Unclassifiable.
Mason County...............................  ..............  Attainment/Unclassifiable.
Menard County..............................  ..............  Attainment/Unclassifiable.
Mercer County..............................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Morgan County..............................  ..............  Attainment/Unclassifiable.
Moultrie County............................  ..............  Attainment/Unclassifiable.
Ogle County................................  ..............  Attainment/Unclassifiable.
Peoria County (part) (remainder)...........  ..............  Attainment/Unclassifiable.
Perry County...............................  ..............  Attainment/Unclassifiable.
Piatt County...............................  ..............  Attainment/Unclassifiable.
Pike County................................  ..............  Attainment/Unclassifiable.
Pope County................................  ..............  Attainment/Unclassifiable.
Pulaski County.............................  ..............  Attainment/Unclassifiable.
Randolph County............................  ..............  Attainment/Unclassifiable.
Richland County............................  ..............  Attainment/Unclassifiable.
Rock Island County.........................  ..............  Attainment/Unclassifiable.
St. Clair County...........................  ..............  Attainment/Unclassifiable.
Saline County..............................  ..............  Attainment/Unclassifiable.
Sangamon County............................  ..............  Attainment/Unclassifiable.
Schuyler County............................  ..............  Attainment/Unclassifiable.
Scott County...............................  ..............  Attainment/Unclassifiable.
Shelby County..............................  ..............  Attainment/Unclassifiable.
Stark County...............................  ..............  Attainment/Unclassifiable.
Stephenson County..........................  ..............  Attainment/Unclassifiable.
Tazewell County (part) (remainder).........  ..............  Attainment/Unclassifiable.
Union County...............................  ..............  Attainment/Unclassifiable.
Vermilion County...........................  ..............  Attainment/Unclassifiable.
Wabash County..............................  ..............  Attainment/Unclassifiable.
Warren County..............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Wayne County...............................  ..............  Attainment/Unclassifiable.
White County...............................  ..............  Attainment/Unclassifiable.
Whiteside County...........................  ..............  Attainment/Unclassifiable.
Will County (part) (remainder).............  ..............  Attainment/Unclassifiable.
Winnebago County...........................  ..............  Attainment/Unclassifiable.
Woodford County............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Macon County will be designated by December 31, 2020.

* * * * *

0
16. Section 81.315 is amended by revising the table entitled 
``Indiana--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.315   Indiana.

* * * * *

[[Page 1122]]



                                  Indiana--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
          Designated area \1\ \3\           --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Huntington, IN.............................  ..............  Nonattainment.
    Huntington County (part)
        Huntington Township
Indianapolis, IN...........................         10/4/13  Nonattainment.
    Marion County (part)
        Wayne Township, Center Township,
         Perry Township
Morgan County, IN..........................         10/4/13  Nonattainment.
    Morgan County (part)
        Clay Township, Washington Township
Southwest Indiana, IN......................         10/4/13  Nonattainment.
    Daviess County (part)
        Veale Township
    Pike County (part)
        Washington Township
Terre Haute, IN............................         10/4/13  Nonattainment.
    Vigo County (part)
        Fayette Township, Harrison Township
Gibson County, IN..........................         9/12/16  Attainment/Unclassifiable.
    Gibson County
Jefferson County, IN.......................         9/12/16  Attainment/Unclassifiable.
    Jefferson County (part)
        Graham, Lancaster, Madison, Monroe,
         Republican, Shelby, and Smyrna
         Townships
LaPorte County, IN.........................         9/12/16  Attainment/Unclassifiable
    LaPorte County
Posey County, IN...........................         9/12/16  Attainment/Unclassifiable.
    Posey County (part)
        Bethel, Center, Harmony, Lynn,
         Marrs, Robb, Robinson, and Smith
         Townships
Spencer County, IN.........................         9/12/16  Attainment/Unclassifiable.
    Spencer County (part)
        Ohio Township north of UTM 4187.580
         km northing, and Carter, Clay,
         Grass, Hammond, Harrison, and
         Jackson Townships
Adams County...............................  ..............  Attainment/Unclassifiable.
Allen County...............................  ..............  Attainment/Unclassifiable.
Bartholomew County.........................  ..............  Attainment/Unclassifiable.
Benton County..............................  ..............  Attainment/Unclassifiable.
Blackford County...........................  ..............  Attainment/Unclassifiable.
Boone County...............................  ..............  Attainment/Unclassifiable.
Brown County...............................  ..............  Attainment/Unclassifiable.
Carroll County.............................  ..............  Attainment/Unclassifiable.
Cass County................................  ..............  Attainment/Unclassifiable.
Clark County...............................  ..............  Attainment/Unclassifiable.
Clay County................................  ..............  Attainment/Unclassifiable.
Clinton County.............................  ..............  Attainment/Unclassifiable.
Crawford County............................  ..............  Attainment/Unclassifiable.
Daviess County (part) (remainder)..........  ..............  Attainment/Unclassifiable.
Dearborn County............................  ..............  Attainment/Unclassifiable.
Decatur County.............................  ..............  Attainment/Unclassifiable.
DeKalb County..............................  ..............  Attainment/Unclassifiable.
Delaware County............................  ..............  Attainment/Unclassifiable.
Dubois County..............................  ..............  Attainment/Unclassifiable.
Elkhart County.............................  ..............  Attainment/Unclassifiable.
Fayette County.............................  ..............  Attainment/Unclassifiable.
Floyd County...............................  ..............  Attainment/Unclassifiable.
Fountain County............................  ..............  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
Fulton County..............................  ..............  Attainment/Unclassifiable.
Grant County...............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Hamilton County............................  ..............  Attainment/Unclassifiable.
Hancock County.............................  ..............  Attainment/Unclassifiable.
Harrison County............................  ..............  Attainment/Unclassifiable.
Hendricks County...........................  ..............  Attainment/Unclassifiable.
Henry County...............................  ..............  Attainment/Unclassifiable.
Howard County..............................  ..............  Attainment/Unclassifiable.
Huntington County (part) (remainder).......  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jasper County..............................  ..............  Attainment/Unclassifiable.
Jay County.................................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Jennings County............................  ..............  Attainment/Unclassifiable.

[[Page 1123]]

 
Johnson County.............................  ..............  Attainment/Unclassifiable.
Knox County................................  ..............  Attainment/Unclassifiable.
Kosciusko County...........................  ..............  Attainment/Unclassifiable.
LaGrange County............................  ..............  Attainment/Unclassifiable.
Lake County................................  ..............  Attainment/Unclassifiable.
Lawrence County............................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Marion County (part) (remainder)...........  ..............  Attainment/Unclassifiable.
Marshall County............................  ..............  Attainment/Unclassifiable.
Martin County..............................  ..............  Attainment/Unclassifiable.
Miami County...............................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Morgan County (part) (remainder)...........  ..............  Attainment/Unclassifiable.
Newton County..............................  ..............  Attainment/Unclassifiable.
Noble County...............................  ..............  Attainment/Unclassifiable.
Ohio County................................  ..............  Attainment/Unclassifiable.
Orange County..............................  ..............  Attainment/Unclassifiable.
Owen County................................  ..............  Attainment/Unclassifiable.
Parke County...............................  ..............  Attainment/Unclassifiable.
Perry County...............................  ..............  Attainment/Unclassifiable.
Pike County (part) (remainder).............  ..............  Attainment/Unclassifiable.
Posey County...............................  ..............  Attainment/Unclassifiable.
Pulaski County.............................  ..............  Attainment/Unclassifiable.
Putnam County..............................  ..............  Attainment/Unclassifiable.
Randolph County............................  ..............  Attainment/Unclassifiable.
Ripley County..............................  ..............  Attainment/Unclassifiable.
Rush County................................  ..............  Attainment/Unclassifiable.
St. Joseph County..........................  ..............  Attainment/Unclassifiable.
Scott County...............................  ..............  Attainment/Unclassifiable.
Shelby County..............................  ..............  Attainment/Unclassifiable.
Spencer County.............................  ..............  Attainment/Unclassifiable.
Starke County..............................  ..............  Attainment/Unclassifiable.
Steuben County.............................  ..............  Attainment/Unclassifiable.
Sullivan County............................  ..............  Attainment/Unclassifiable.
Switzerland County.........................  ..............  Attainment/Unclassifiable.
Tippecanoe County..........................  ..............  Attainment/Unclassifiable.
Tipton County..............................  ..............  Attainment/Unclassifiable.
Union County...............................  ..............  Attainment/Unclassifiable.
Vanderburgh County.........................  ..............  Attainment/Unclassifiable.
Vermillion County..........................  ..............  Attainment/Unclassifiable.
Vigo County (part) (remainder).............  ..............  Attainment/Unclassifiable.
Wabash County..............................  ..............  Attainment/Unclassifiable.
Warren County..............................  ..............  Attainment/Unclassifiable.
Warrick County.............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Wayne County...............................  ..............  Attainment/Unclassifiable.
Wells County...............................  ..............  Attainment/Unclassifiable.
White County...............................  ..............  Attainment/Unclassifiable.
Whitley County.............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Porter County will be designated by December 31, 2020.

* * * * *

0
17. Section 81.316 is amended by revising the table entitled ``Iowa--
2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.316  Iowa.

* * * * *

                                    Iowa--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Muscatine, IA..............................         10/4/13  Nonattainment.

[[Page 1124]]

 
    Muscatine County (part)
        Sections 1-3, 10-15, 22-27, 34-36
         of T77N, R3W (Lake Township)
        Sections 1-3, 10-15, 22-27, 34-36
         of T76N, R3W (Seventy-six
         Township)
            T77N, R2W (Bloomington
             Township)
            T76N, R2W (Fruitland Township)
        All sections except 1, 12, 13, 24,
         25, 36 of T77N, R1W (Sweetland
         Township)
Linn County, IA............................  ..............  Unclassifiable.
    Linn County
Woodbury County, IA........................         9/12/16  Unclassifiable.
    Woodbury County
Des Moines County, IA......................         9/12/16  Attainment/Unclassifiable.
    Des Moines County
Louisa County, IA..........................  ..............  Attainment/Unclassifiable.
    Louisa County
Pottawattamie County, IA...................  ..............  Attainment/Unclassifiable.
    Pottawattamie County
Wapello County, IA.........................         9/12/16  Attainment/Unclassifiable.
    Wapello County
Statewide:.................................  ..............  Attainment/Unclassifiable.
    Adair County
    Adams County
    Allamakee County
    Appanoose County
    Audubon County
    Benton County
    Black Hawk County
    Boone County
    Bremer County
    Buchanan County
    Buena Vista County
    Butler County
    Calhoun County
    Carroll County
    Cass County
    Cedar County
    Cerro Gordo County
    Cherokee County
    Chickasaw County
    Clarke County
    Clay County
    Clayton County
    Clinton County
    Crawford County
    Dallas County
    Davis County
    Decatur County
    Delaware County
    Dickinson County
    Dubuque County
    Emmet County
    Fayette County
    Floyd County
    Franklin County
    Fremont County
    Greene County
    Grundy County
    Guthrie County
    Hamilton County
    Hancock County
    Hardin County
    Harrison County
    Henry County
    Howard County
    Humboldt County
    Ida County
    Iowa County
    Jackson County
    Jasper County
    Jefferson County
    Johnson County

[[Page 1125]]

 
    Jones County
    Keokuk County
    Kossuth County
    Lee County
    Lucas County
    Lyon County
    Madison County
    Mahaska County
    Marion County
    Marshall County
    Mills County
    Mitchell County
    Monona County
    Monroe County
    Montgomery County
    Muscatine County (portion of Muscatine
     County not designated Nonattainment on
     10/4/13)
    O'Brien County
    Osceola County
    Page County
    Palo Alto County
    Plymouth County
    Pocahontas County
    Polk County
    Poweshiek County
    Ringgold County
    Sac County
    Scott County
    Shelby County
    Sioux County
    Story County
    Tama County
    Taylor County
    Union County
    Van Buren County
    Warren County
    Washington County
    Wayne County
    Webster County
    Winnebago County
    Winneshiek County
    Worth County
    Wright County
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
18. Section 81.317 is amended by revising the table entitled ``Kansas--
2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.317  Kansas.

* * * * *

                                   Kansas--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Shawnee County, KS.........................         9/12/16  Unclassifiable.
    Shawnee County
Wyandotte County, KS.......................         9/12/16  Unclassifiable.
    Wyandotte County
Linn County, KS............................         9/12/16  Attainment/Unclassifiable.
    Linn County
Statewide:.................................  ..............  Attainment/Unclassifiable.
    Allen County
    Anderson County
    Atchison County

[[Page 1126]]

 
    Barber County
    Barton County
    Bourbon County
    Brown County
    Butler County
    Chase County
    Chautauqua County
    Cherokee County
    Cheyenne County
    Clark County
    Clay County
    Cloud County
    Coffey County
    Comanche County
    Cowley County
    Crawford County
    Decatur County
    Dickinson County
    Doniphan County
    Douglas County
    Edwards County
    Elk County
    Ellis County
    Ellsworth County
    Finney County
    Ford County
    Franklin County
    Geary County
    Gove County
    Graham County
    Grant County
    Gray County
    Greeley County
    Greenwood County
    Hamilton County
    Harper County
    Harvey County
    Haskell County
    Hodgeman County
    Jackson County
    Jefferson County
    Jewell County
    Johnson County
    Kearny County
    Kingman County
    Kiowa County
    Labette County
    Lane County
    Leavenworth County
    Lincoln County
    Logan County
    Lyon County
    Marion County
    Marshall County
    McPherson County
    Meade County
    Miami County
    Mitchell County
    Montgomery County
    Morris County
    Morton County
    Nemaha County
    Neosho County
    Ness County
    Norton County
    Osage County
    Osborne County
    Ottawa County
    Pawnee County
    Phillips County

[[Page 1127]]

 
    Pottawatomie County
    Pratt County
    Rawlins County
    Reno County
    Republic County
    Rice County
    Riley County
    Rooks County
    Rush County
    Russell County
    Saline County
    Scott County
    Sedgwick County
    Seward County
    Sheridan County
    Sherman County
    Smith County
    Stafford County
    Stanton County
    Stevens County
    Sumner County
    Thomas County
    Trego County
    Wabaunsee County
    Wallace County
    Washington County
    Wichita County
    Wilson County
    Woodson County
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
19. Section 81.318 is amended by revising the table entitled 
``Kentucky--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.318  Kentucky.

* * * * *

                                  Kentucky--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \4\             --------------------------------------------------------------------
                                                Date \1\                             Type
----------------------------------------------------------------------------------------------------------------
Campbell-Clermont Counties, KY-OH: \2\.....       3/10/2017  Attainment.
    Campbell County (part)
        That portion of Campbell County
         which lies south and west of the
         Ohio River described as follows:
         Beginning at geographic
         coordinates 38.9735 North
         Latitude, 84.3017 West Longitude
         (NAD 1983) on the edge of the Ohio
         River running southwesterly to KY
         Highway 1566; thence continuing
         running southwesterly along KY
         Highway 1566 to KY Highway 9 (AA
         Highway); thence running
         northwesterly along KY Highway 9
         (AA Highway) from Hwy 1566 to
         Interstate 275; thence running
         northeasterly along Interstate 275
         to Highway 2345 (John's Hill
         Road), Hwy 2345 to US-27, US-27 to
         I-275, I-275 to the Ohio River;
         thence running southeasterly along
         the Ohio River from Interstate 275
         to geographic coordinates 38.9735
         North Latitude, 84.3017 West
         Longitude (NAD 1983).
Jefferson County, KY \2\...................         10/4/13  Nonattainment.

[[Page 1128]]

 
    Jefferson County (part)
        That portion of Jefferson County
         compassed by the polygon with the
         vertices using Universal Traverse
         Mercator (UTM) coordinates in UTM
         zone 16 with datum NAD83 as
         follows:
        (1) Ethan Allen Way extended to the
         Ohio River at UTM Easting (m)
         595738, UTM Northing 4214086 and
         Dixie Highway (US60 and US31W) at
         UTM Easting (m) 59751, UTM
         Northing 4212946;
        (2) Along Dixie Highway from UTM
         Easting (m) 597515, UTM Northing
         4212946 to UTM Easting (m) 595859,
         UTM Northing 4210678;
        (3) Near the adjacent property
         lines of Louisville Gas and
         Electric-Mill Creek Electric
         Generating Station and Kosmos
         Cement where they join Dixie
         Highway at UTM Easting (m) 595859,
         UTM Northing 4210678 and the Ohio
         River at UTM Easting (m) 595326,
         UTM Northing 4211014;
        (4) Along the Ohio River from UTM
         Easting (m) 595326, UTM Northing
         4211014 to UTM Easting (m) 595738,
         UTM Northing 4214086
Ohio County, KY \2\........................         9/12/16  Unclassifiable.
    Ohio County
Pulaski County, KY \2\.....................         9/12/16  Unclassifiable.
    Pulaski County
Rest of State: \3\
    Adair County...........................  ..............  Attainment/Unclassifiable.
    Allen County...........................  ..............  Attainment/Unclassifiable.
    Anderson County........................  ..............  Attainment/Unclassifiable.
    Ballard County.........................  ..............  Attainment/Unclassifiable.
    Barren County..........................  ..............  Attainment/Unclassifiable.
    Bath County............................  ..............  Attainment/Unclassifiable.
    Bell County............................  ..............  Attainment/Unclassifiable.
    Boone County...........................  ..............  Attainment/Unclassifiable.
    Bourbon County.........................  ..............  Attainment/Unclassifiable.
    Boyd County............................  ..............  Attainment/Unclassifiable.
    Boyle County...........................  ..............  Attainment/Unclassifiable.
    Bracken County.........................  ..............  Attainment/Unclassifiable.
    Breathitt County.......................  ..............  Attainment/Unclassifiable.
    Breckinridge County....................  ..............  Attainment/Unclassifiable.
    Bullitt County.........................  ..............  Attainment/Unclassifiable.
    Butler County..........................  ..............  Attainment/Unclassifiable.
    Caldwell County........................  ..............  Attainment/Unclassifiable.
    Calloway County........................  ..............  Attainment/Unclassifiable.
    Campbell County (part) (remainder).....  ..............  Attainment/Unclassifiable.
    Carlisle County........................  ..............  Attainment/Unclassifiable.
    Carroll County.........................  ..............  Attainment/Unclassifiable.
    Carter County..........................  ..............  Attainment/Unclassifiable.
    Casey County...........................  ..............  Attainment/Unclassifiable.
    Christian County.......................  ..............  Attainment/Unclassifiable.
    Clark County...........................  ..............  Attainment/Unclassifiable.
    Clay County............................  ..............  Attainment/Unclassifiable.
    Clinton County.........................  ..............  Attainment/Unclassifiable.
    Crittenden County......................  ..............  Attainment/Unclassifiable.
    Cumberland County......................  ..............  Attainment/Unclassifiable.
    Daviess County.........................  ..............  Attainment/Unclassifiable.
    Edmonson County........................  ..............  Attainment/Unclassifiable.
    Elliott County.........................  ..............  Attainment/Unclassifiable.
    Estill County..........................  ..............  Attainment/Unclassifiable.
    Fayette County.........................  ..............  Attainment/Unclassifiable.
    Fleming County.........................  ..............  Attainment/Unclassifiable.
    Floyd County...........................  ..............  Attainment/Unclassifiable.
    Franklin County........................  ..............  Attainment/Unclassifiable.
    Fulton County..........................  ..............  Attainment/Unclassifiable.
    Gallatin County........................  ..............  Attainment/Unclassifiable.
    Garrard County.........................  ..............  Attainment/Unclassifiable.
    Grant County...........................  ..............  Attainment/Unclassifiable.
    Graves County..........................  ..............  Attainment/Unclassifiable.
    Grayson County.........................  ..............  Attainment/Unclassifiable.
    Green County...........................  ..............  Attainment/Unclassifiable.
    Greenup County.........................  ..............  Attainment/Unclassifiable.
    Hancock County.........................  ..............  Attainment/Unclassifiable.
    Hardin County..........................  ..............  Attainment/Unclassifiable.
    Harlan County..........................  ..............  Attainment/Unclassifiable.
    Harrison County........................  ..............  Attainment/Unclassifiable.
    Hart County............................  ..............  Attainment/Unclassifiable.

[[Page 1129]]

 
    Henderson County (part) \4\............  ..............  Attainment/Unclassifiable.
        Census Block Groups 211010207013,
         211010207014, 211010207024, and
         211010208004
    Henry County...........................  ..............  Attainment/Unclassifiable.
    Hickman County.........................  ..............  Attainment/Unclassifiable.
    Hopkins County.........................  ..............  Attainment/Unclassifiable.
    Jackson County.........................  ..............  Attainment/Unclassifiable.
    Jefferson County (part) (remainder)....  ..............  Attainment/Unclassifiable.
    Jessamine County.......................  ..............  Attainment/Unclassifiable.
    Johnson County.........................  ..............  Attainment/Unclassifiable.
    Kenton County..........................  ..............  Attainment/Unclassifiable.
    Knott County...........................  ..............  Attainment/Unclassifiable.
    Knox County............................  ..............  Attainment/Unclassifiable.
    LaRue County...........................  ..............  Attainment/Unclassifiable.
    Laurel County..........................  ..............  Attainment/Unclassifiable.
    Lawrence County........................  ..............  Attainment/Unclassifiable.
    Lee County.............................  ..............  Attainment/Unclassifiable.
    Leslie County..........................  ..............  Attainment/Unclassifiable.
    Letcher County.........................  ..............  Attainment/Unclassifiable.
    Lewis County...........................  ..............  Attainment/Unclassifiable.
    Lincoln County.........................  ..............  Attainment/Unclassifiable.
    Livingston County......................  ..............  Attainment/Unclassifiable.
    Logan County...........................  ..............  Attainment/Unclassifiable.
    Lyon County............................  ..............  Attainment/Unclassifiable.
    Madison County.........................  ..............  Attainment/Unclassifiable.
    Magoffin County........................  ..............  Attainment/Unclassifiable.
    Marion County..........................  ..............  Attainment/Unclassifiable.
    Marshall County........................  ..............  Attainment/Unclassifiable.
    Martin County..........................  ..............  Attainment/Unclassifiable.
    Mason County...........................  ..............  Attainment/Unclassifiable.
    McCracken County.......................  ..............  Attainment/Unclassifiable.
    McCreary County........................  ..............  Attainment/Unclassifiable.
    McLean County..........................  ..............  Attainment/Unclassifiable.
    Meade County...........................  ..............  Attainment/Unclassifiable.
    Menifee County.........................  ..............  Attainment/Unclassifiable.
    Mercer County..........................  ..............  Attainment/Unclassifiable.
    Metcalfe County........................  ..............  Attainment/Unclassifiable.
    Monroe County..........................  ..............  Attainment/Unclassifiable.
    Montgomery County......................  ..............  Attainment/Unclassifiable.
    Morgan County..........................  ..............  Attainment/Unclassifiable.
    Muhlenberg County......................  ..............  Attainment/Unclassifiable.
    Nelson County..........................  ..............  Attainment/Unclassifiable.
    Nicholas County........................  ..............  Attainment/Unclassifiable.
    Oldham County..........................  ..............  Attainment/Unclassifiable.
    Owen County............................  ..............  Attainment/Unclassifiable.
    Owsley County..........................  ..............  Attainment/Unclassifiable.
    Pendleton County.......................  ..............  Attainment/Unclassifiable.
    Perry County...........................  ..............  Attainment/Unclassifiable.
    Pike County............................  ..............  Attainment/Unclassifiable.
    Powell County..........................  ..............  Attainment/Unclassifiable.
    Robertson County.......................  ..............  Attainment/Unclassifiable.
    Rockcastle County......................  ..............  Attainment/Unclassifiable.
    Rowan County...........................  ..............  Attainment/Unclassifiable.
    Russell County.........................  ..............  Attainment/Unclassifiable.
    Scott County...........................  ..............  Attainment/Unclassifiable.
    Shelby County..........................  ..............  Attainment/Unclassifiable.
    Simpson County.........................  ..............  Attainment/Unclassifiable.
    Spencer County.........................  ..............  Attainment/Unclassifiable.
    Taylor County..........................  ..............  Attainment/Unclassifiable.
    Todd County............................  ..............  Attainment/Unclassifiable.
    Trigg County...........................  ..............  Attainment/Unclassifiable.
    Trimble County.........................  ..............  Attainment/Unclassifiable.
    Union County...........................  ..............  Attainment/Unclassifiable.
    Warren County..........................  ..............  Attainment/Unclassifiable.
    Washington County......................  ..............  Attainment/Unclassifiable.
    Wayne County...........................  ..............  Attainment/Unclassifiable.
    Whitley County.........................  ..............  Attainment/Unclassifiable.
    Wolfe County...........................  ..............  Attainment/Unclassifiable.
    Woodford County........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ This date is April 9, 2018, unless otherwise noted.

[[Page 1130]]

 
\2\ Excludes Indian country located in each area, if any, unless otherwise specified.
\3\ Includes any Indian country in each county or area, if any, unless otherwise specified. EPA is not
  determining the boundaries of any area of Indian country in this table, including any area of Indian country
  located in the larger designation area. The inclusion of any Indian country in the designation area is not a
  determination that the state has regulatory authority under the Clean Air Act for such Indian country.
\4\ Webster County and the remainder of Henderson County will be designated by December 31, 2020.

* * * * *

0
20. Section 81.319 is amended by revising the table entitled 
``Louisiana--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.319   Louisiana.

* * * * *

                                 Louisiana--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
          Designated area \1\ \3\           --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Evangeline Parish (Partial)................  ..............  Nonattainment.
Portion of Evangeline Parish bounded by:
    570250m E, 3400300m N
    570250m E, 3403300m N
    572400m E, 3403300m N
    572400m E, 3400300m N
    NAD83 15R
St. Bernard Parish, LA.....................         10/4/13  Nonattainment.
Calcasieu Parish, LA.......................         9/12/16  Unclassifiable.
St. Mary Parish............................  ..............  Unclassifiable.
Acadia Parish..............................  ..............  Attainment/Unclassifiable.
Allen Parish...............................  ..............  Attainment/Unclassifiable.
Assumption Parish..........................  ..............  Attainment/Unclassifiable.
Avoyelles Parish...........................  ..............  Attainment/Unclassifiable.
Beauregard Parish..........................  ..............  Attainment/Unclassifiable.
Bienville Parish...........................  ..............  Attainment/Unclassifiable.
Bossier Parish.............................  ..............  Attainment/Unclassifiable.
Caddo Parish...............................  ..............  Attainment/Unclassifiable.
Caldwell Parish............................  ..............  Attainment/Unclassifiable.
Cameron Parish.............................  ..............  Attainment/Unclassifiable.
Catahoula Parish...........................  ..............  Attainment/Unclassifiable.
Claiborne Parish...........................  ..............  Attainment/Unclassifiable.
Concordia Parish...........................  ..............  Attainment/Unclassifiable.
De Soto Parish.............................         9/12/16  Attainment/Unclassifiable.
East Carroll Parish........................  ..............  Attainment/Unclassifiable.
East Feliciana Parish......................  ..............  Attainment/Unclassifiable.
Evangeline Parish (part) (remainder).......  ..............  Attainment/Unclassifiable.
Franklin Parish............................  ..............  Attainment/Unclassifiable.
Grant Parish...............................  ..............  Attainment/Unclassifiable.
Iberia Parish..............................  ..............  Attainment/Unclassifiable.
Iberville Parish...........................  ..............  Attainment/Unclassifiable.
Jackson Parish.............................  ..............  Attainment/Unclassifiable.
Jefferson Parish...........................  ..............  Attainment/Unclassifiable.
Jefferson Davis Parish.....................  ..............  Attainment/Unclassifiable.
Lafayette Parish...........................  ..............  Attainment/Unclassifiable.
Lafourche Parish...........................  ..............  Attainment/Unclassifiable.
LaSalle Parish.............................  ..............  Attainment/Unclassifiable.
Lincoln Parish.............................  ..............  Attainment/Unclassifiable.
Livingston Parish..........................  ..............  Attainment/Unclassifiable.
Madison Parish.............................  ..............  Attainment/Unclassifiable.
Morehouse Parish...........................  ..............  Attainment/Unclassifiable.
Natchitoches Parish........................  ..............  Attainment/Unclassifiable.
Orleans Parish.............................  ..............  Attainment/Unclassifiable.
Ouachita Parish............................  ..............  Attainment/Unclassifiable.
Plaquemines Parish.........................  ..............  Attainment/Unclassifiable.
Point Coupee...............................  ..............  Attainment/Unclassifiable.
Rapides Parish.............................  ..............  Attainment/Unclassifiable.
Red River Parish...........................  ..............  Attainment/Unclassifiable.
Richland Parish............................  ..............  Attainment/Unclassifiable.
Sabine Parish..............................  ..............  Attainment/Unclassifiable.
St. Helena Parish..........................  ..............  Attainment/Unclassifiable.
St. John the Baptist Parish................  ..............  Attainment/Unclassifiable.
St. Landry Parish..........................  ..............  Attainment/Unclassifiable.
St. Martin Parish..........................  ..............  Attainment/Unclassifiable.
St. Mary Parish............................  ..............  Attainment/Unclassifiable.
St. Tammany Parish.........................  ..............  Attainment/Unclassifiable.
Tangipahoa Parish..........................  ..............  Attainment/Unclassifiable.
Tensas Parish..............................  ..............  Attainment/Unclassifiable.
Terrebonne Parish..........................  ..............  Attainment/Unclassifiable.
Union Parish...............................  ..............  Attainment/Unclassifiable.

[[Page 1131]]

 
Vermilion Parish...........................  ..............  Attainment/Unclassifiable.
Vernon Parish..............................  ..............  Attainment/Unclassifiable.
Washington Parish..........................  ..............  Attainment/Unclassifiable.
Webster Parish.............................  ..............  Attainment/Unclassifiable.
West Carroll Parish........................  ..............  Attainment/Unclassifiable.
Winn Parish................................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ East Baton Rouge, St. Charles, St. James, and West Baton Rouge Parishes will be designated by December 31,
  2020.

* * * * *

0
21. Section 81.320 is amended by adding a table entitled ``Maine--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table ``Maine--1971 
Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.320  Maine.

* * * * *

                                   Maine--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Statewide:.................................  ..............  Attainment/Unclassifiable.
    Androscoggin County
    Aroostook County
    Cumberland County
    Franklin County
    Hancock County
    Kennebec County
    Knox County
    Lincoln County
    Oxford County
    Penobscot County
    Piscataquis County
    Sagadahoc County
    Somerset County
    Waldo County
    Washington County
    York County
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
22. Section 81.321 is amended by revising the table entitled 
``Maryland--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.321   Maryland.

* * * * *

                                  Maryland--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
          Designated area \1\ \3\           --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Anne Arundel County and Baltimore County,           9/12/16  Nonattainment.
 MD\1\.
    Anne Arundel County (part)
        Portions of Anne Arundel County
         that are within 26.8 kilometers of
         Herbert A. Wagner's Unit 3 stack,
         which is located at 39.17765 N.
         latitude, 76.52752 W. longitude
    Baltimore County (part)
        Portions of Baltimore County that
         are within 26.8 kilometers of
         Herbert A. Wagner's Unit 3 stack,
         which is located at 39.17765 N.
         latitude, 76.52752 W. longitude
Anne Arundel County (part).................  ..............  Attainment/Unclassifiable.
    Remainder of County
Baltimore City, MD.........................         9/12/16  Attainment/Unclassifiable.
Baltimore County (part)....................  ..............  Attainment/Unclassifiable.

[[Page 1132]]

 
    Remainder of County
Calvert County.............................  ..............  Attainment/Unclassifiable.
Caroline County............................  ..............  Attainment/Unclassifiable.
Carroll County.............................  ..............  Attainment/Unclassifiable.
Cecil County...............................  ..............  Attainment/Unclassifiable.
Charles County.............................  ..............  Attainment/Unclassifiable.
Dorchester County..........................  ..............  Attainment/Unclassifiable.
Frederick County...........................  ..............  Attainment/Unclassifiable.
Garrett County.............................  ..............  Attainment/Unclassifiable.
Harford County.............................  ..............  Attainment/Unclassifiable.
Howard County..............................  ..............  Attainment/Unclassifiable.
Kent County................................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Prince George's County.....................  ..............  Attainment/Unclassifiable.
Queen Anne's County........................  ..............  Attainment/Unclassifiable.
Somerset County............................  ..............  Attainment/Unclassifiable.
St. Mary's County..........................  ..............  Attainment/Unclassifiable.
Talbot County..............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Wicomico County............................  ..............  Attainment/Unclassifiable.
Worcester County...........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Allegany County will be designated by December 31, 2020.

* * * * *

0
23. Section 81.322 is amended by adding a table entitled 
``Massachusetts--2010 Sulfur Dioxide NAAQS (Primary)'' following the 
table ``Massachusetts--1971 Sulfur Dioxide NAAQS (Primary and 
Secondary)'' to read as follows:


Sec.  81.322  Massachusetts.

* * * * *

                               Massachusetts--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Statewide:
    Barnstable County......................  ..............  Attainment/Unclassifiable.
    Berkshire County.......................  ..............  Attainment/Unclassifiable.
    Bristol County.........................  ..............  Attainment/Unclassifiable.
    Dukes County...........................  ..............  Attainment/Unclassifiable.
    Essex County...........................  ..............  Attainment/Unclassifiable.
    Franklin County........................  ..............  Attainment/Unclassifiable.
    Hampden County.........................  ..............  Attainment/Unclassifiable.
    Hampshire County.......................  ..............  Attainment/Unclassifiable.
    Middlesex County.......................  ..............  Attainment/Unclassifiable.
    Nantucket County.......................  ..............  Attainment/Unclassifiable.
    Norfolk County.........................  ..............  Attainment/Unclassifiable.
    Plymouth County........................  ..............  Attainment/Unclassifiable.
    Suffolk County.........................  ..............  Attainment/Unclassifiable.
    Worcester County.......................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
24. Section 81.323 is amended by revising the table entitled 
``Michigan--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.323   Michigan.

* * * * *

[[Page 1133]]



                                  Michigan--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Detroit, MI................................         10/4/13  Nonattainment.
    Wayne County (part)
        The area bounded on the east by the
         Michigan-Ontario border, on the
         south by the Wayne County-Monroe
         County border, on the west by
         Interstate 75 north to Southfield
         Road, Southfield Road to
         Interstate 94, and Interstate 94
         north to Michigan Avenue, and on
         the north by Michigan Avenue to
         Woodward Avenue and a line on
         Woodward Avenue extended to the
         Michigan-Ontario border.
St. Clair, MI..............................         9/12/16  Nonattainment.
    St. Clair County (part)
        Area defined by the St. Clair River
         for the eastern boundary, an
         extension from the St. Clair River
         straight west to the intersection
         of State Highway M-29 and St.
         Clair River Drive, continuing west
         on State Highway M-29 to Church
         Road to Arnold Road to County Line
         Road for the southern boundary,
         County Line Road and the Macomb/
         St. Clair County boundary to
         Stoddard Road to Wales Ridge Road
         for the western boundary, and
         Alpine Road to Fitz Road to Smith
         Creek Road to Range Road to Huron
         Avenue, extending straight east
         from the intersection of Huron
         Road and River Road to the St.
         Clair River for the northern
         boundary.
Bay County, MI.............................         9/12/16  Attainment/Unclassifiable.
    Bay County
Lansing, MI................................         9/12/16  Attainment/Unclassifiable.
    Eaton County
    Ingham County
Marquette County, MI.......................         9/12/16  Attainment/Unclassifiable.
    Marquette County
Monroe County, MI..........................         9/12/16  Attainment/Unclassifiable.
    Monroe County
Ottawa County, MI..........................         9/12/16  Attainment/Unclassifiable.
    Ottawa County
Alcona County..............................  ..............  Attainment/Unclassifiable.
Alger County...............................  ..............  Attainment/Unclassifiable.
Allegan County.............................  ..............  Attainment/Unclassifiable.
Alpena County..............................  ..............  Attainment/Unclassifiable.
Antrim County..............................  ..............  Attainment/Unclassifiable.
Arenac County..............................  ..............  Attainment/Unclassifiable.
Baraga County..............................  ..............  Attainment/Unclassifiable.
Barry County...............................  ..............  Attainment/Unclassifiable.
Benzie County..............................  ..............  Attainment/Unclassifiable.
Berrien County.............................  ..............  Attainment/Unclassifiable.
Branch County..............................  ..............  Attainment/Unclassifiable.
Calhoun County.............................  ..............  Attainment/Unclassifiable.
Cass County................................  ..............  Attainment/Unclassifiable.
Charlevoix County..........................  ..............  Attainment/Unclassifiable.
Cheboygan County...........................  ..............  Attainment/Unclassifiable.
Chippewa County............................  ..............  Attainment/Unclassifiable.
Clare County...............................  ..............  Attainment/Unclassifiable.
Clinton County.............................  ..............  Attainment/Unclassifiable.
Crawford County............................  ..............  Attainment/Unclassifiable.
Delta County...............................  ..............  Attainment/Unclassifiable.
Dickinson County...........................  ..............  Attainment/Unclassifiable.
Emmet County...............................  ..............  Attainment/Unclassifiable.
Genesee County.............................  ..............  Attainment/Unclassifiable.
Gladwin County.............................  ..............  Attainment/Unclassifiable.
Gogebic County.............................  ..............  Attainment/Unclassifiable.
Grand Traverse County......................  ..............  Attainment/Unclassifiable.
Gratiot County.............................  ..............  Attainment/Unclassifiable.
Hillsdale County...........................  ..............  Attainment/Unclassifiable.
Houghton County............................  ..............  Attainment/Unclassifiable.
Huron County...............................  ..............  Attainment/Unclassifiable.
Ionia County...............................  ..............  Attainment/Unclassifiable.
Iosco County...............................  ..............  Attainment/Unclassifiable.
Iron County................................  ..............  Attainment/Unclassifiable.
Isabella County............................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Kalamazoo County...........................  ..............  Attainment/Unclassifiable.
Kalkaska County............................  ..............  Attainment/Unclassifiable.
Kent County................................  ..............  Attainment/Unclassifiable.
Keweenaw County............................  ..............  Attainment/Unclassifiable.
Lake County................................  ..............  Attainment/Unclassifiable.
Lapeer County..............................  ..............  Attainment/Unclassifiable.
Leelanau County............................  ..............  Attainment/Unclassifiable.

[[Page 1134]]

 
Lenawee County.............................  ..............  Attainment/Unclassifiable.
Livingston County..........................  ..............  Attainment/Unclassifiable.
Luce County................................  ..............  Attainment/Unclassifiable.
Mackinac County............................  ..............  Attainment/Unclassifiable.
Macomb County..............................  ..............  Attainment/Unclassifiable.
Manistee County............................  ..............  Attainment/Unclassifiable.
Mason County...............................  ..............  Attainment/Unclassifiable.
Mecosta County.............................  ..............  Attainment/Unclassifiable.
Menominee County...........................  ..............  Attainment/Unclassifiable.
Midland County.............................  ..............  Attainment/Unclassifiable.
Missaukee County...........................  ..............  Attainment/Unclassifiable.
Montcalm County............................  ..............  Attainment/Unclassifiable.
Montmorency County.........................  ..............  Attainment/Unclassifiable.
Muskegon County............................  ..............  Attainment/Unclassifiable.
Newaygo County.............................  ..............  Attainment/Unclassifiable.
Oakland County.............................  ..............  Attainment/Unclassifiable.
Oceana County..............................  ..............  Attainment/Unclassifiable.
Ogemaw County..............................  ..............  Attainment/Unclassifiable.
Ontonagon County...........................  ..............  Attainment/Unclassifiable.
Osceola County.............................  ..............  Attainment/Unclassifiable.
Oscoda County..............................  ..............  Attainment/Unclassifiable.
Otsego County..............................  ..............  Attainment/Unclassifiable.
Presque Isle County........................  ..............  Attainment/Unclassifiable.
Roscommon County...........................  ..............  Attainment/Unclassifiable.
Saginaw County.............................  ..............  Attainment/Unclassifiable.
St. Clair County (remainder)...............  ..............  Attainment/Unclassifiable.
St. Joseph County..........................  ..............  Attainment/Unclassifiable.
Sanilac County.............................  ..............  Attainment/Unclassifiable.
Schoolcraft County.........................  ..............  Attainment/Unclassifiable.
Shiawassee County..........................  ..............  Attainment/Unclassifiable.
Tuscola County.............................  ..............  Attainment/Unclassifiable.
Van Buren County...........................  ..............  Attainment/Unclassifiable.
Washtenaw County...........................  ..............  Attainment/Unclassifiable.
Wayne County (remainder)...................  ..............  Attainment/Unclassifiable.
Wexford County.............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
25. Section 81.324 is amended by adding a table entitled ``Minnesota--
2010 Sulfur Dioxide NAAQS (Primary)'' following the table ``Minnesota--
1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.324   Minnesota.

* * * * *

                                 Minnesota--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Goodhue County.............................  ..............  Unclassifiable.
Aitkin County..............................  ..............  Attainment/Unclassifiable.
Anoka County...............................  ..............  Attainment/Unclassifiable.
Becker County..............................  ..............  Attainment/Unclassifiable.
Beltrami County............................  ..............  Attainment/Unclassifiable.
Benton County..............................  ..............  Attainment/Unclassifiable.
Big Stone County...........................  ..............  Attainment/Unclassifiable.
Blue Earth County..........................  ..............  Attainment/Unclassifiable.
Brown County...............................  ..............  Attainment/Unclassifiable.
Carlton County.............................  ..............  Attainment/Unclassifiable.
Carver County..............................  ..............  Attainment/Unclassifiable.
Cass County................................  ..............  Attainment/Unclassifiable.
Chippewa County............................  ..............  Attainment/Unclassifiable.
Chisago County.............................  ..............  Attainment/Unclassifiable.
Clay County................................  ..............  Attainment/Unclassifiable.
Clearwater County..........................  ..............  Attainment/Unclassifiable.
Cook County................................  ..............  Attainment/Unclassifiable.

[[Page 1135]]

 
Cottonwood County..........................  ..............  Attainment/Unclassifiable.
Crow Wing County...........................  ..............  Attainment/Unclassifiable.
Dakota County..............................  ..............  Attainment/Unclassifiable.
Dodge County...............................  ..............  Attainment/Unclassifiable.
Douglas County.............................  ..............  Attainment/Unclassifiable.
Faribault County...........................  ..............  Attainment/Unclassifiable.
Fillmore County............................  ..............  Attainment/Unclassifiable.
Freeborn County............................  ..............  Attainment/Unclassifiable.
Grant County...............................  ..............  Attainment/Unclassifiable.
Hennepin County............................  ..............  Attainment/Unclassifiable.
Houston County.............................  ..............  Attainment/Unclassifiable.
Hubbard County.............................  ..............  Attainment/Unclassifiable.
Isanti County..............................  ..............  Attainment/Unclassifiable.
Itasca County..............................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Kanabec County.............................  ..............  Attainment/Unclassifiable.
Kandiyohi County...........................  ..............  Attainment/Unclassifiable.
Kittson County.............................  ..............  Attainment/Unclassifiable.
Koochiching County.........................  ..............  Attainment/Unclassifiable.
Lac qui Parle County.......................  ..............  Attainment/Unclassifiable.
Lake County................................  ..............  Attainment/Unclassifiable.
Lake of the Woods County...................  ..............  Attainment/Unclassifiable.
Le Sueur County............................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Lyon County................................  ..............  Attainment/Unclassifiable.
McLeod County..............................  ..............  Attainment/Unclassifiable.
Mahnomen County............................  ..............  Attainment/Unclassifiable.
Marshall County............................  ..............  Attainment/Unclassifiable.
Martin County..............................  ..............  Attainment/Unclassifiable.
Meeker County..............................  ..............  Attainment/Unclassifiable.
Mille Lacs County..........................  ..............  Attainment/Unclassifiable.
Morrison County............................  ..............  Attainment/Unclassifiable.
Mower County...............................  ..............  Attainment/Unclassifiable.
Murray County..............................  ..............  Attainment/Unclassifiable.
Nicollet County............................  ..............  Attainment/Unclassifiable.
Nobles County..............................  ..............  Attainment/Unclassifiable.
Norman County..............................  ..............  Attainment/Unclassifiable.
Olmsted County.............................  ..............  Attainment/Unclassifiable.
Otter Tail County..........................  ..............  Attainment/Unclassifiable.
Pennington County..........................  ..............  Attainment/Unclassifiable.
Pine County................................  ..............  Attainment/Unclassifiable.
Pipestone County...........................  ..............  Attainment/Unclassifiable.
Polk County................................  ..............  Attainment/Unclassifiable.
Pope County................................  ..............  Attainment/Unclassifiable.
Ramsey County..............................  ..............  Attainment/Unclassifiable.
Red Lake County............................  ..............  Attainment/Unclassifiable.
Redwood County.............................  ..............  Attainment/Unclassifiable.
Renville County............................  ..............  Attainment/Unclassifiable.
Rice County................................  ..............  Attainment/Unclassifiable.
Rock County................................  ..............  Attainment/Unclassifiable.
Roseau County..............................  ..............  Attainment/Unclassifiable.
St. Louis County...........................  ..............  Attainment/Unclassifiable.
Scott County...............................  ..............  Attainment/Unclassifiable.
Sherburne County...........................  ..............  Attainment/Unclassifiable.
Sibley County..............................  ..............  Attainment/Unclassifiable.
Stearns County.............................  ..............  Attainment/Unclassifiable.
Steele County..............................  ..............  Attainment/Unclassifiable.
Stevens County.............................  ..............  Attainment/Unclassifiable.
Swift County...............................  ..............  Attainment/Unclassifiable.
Todd County................................  ..............  Attainment/Unclassifiable.
Traverse County............................  ..............  Attainment/Unclassifiable.
Wabasha County.............................  ..............  Attainment/Unclassifiable.
Wadena County..............................  ..............  Attainment/Unclassifiable.
Waseca County..............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Watonwan County............................  ..............  Attainment/Unclassifiable.
Wilkin County..............................  ..............  Attainment/Unclassifiable.
Winona County..............................  ..............  Attainment/Unclassifiable.
Wright County..............................  ..............  Attainment/Unclassifiable.

[[Page 1136]]

 
Yellow Medicine County.....................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
26. Section 81.325 is amended by revising the table entitled 
``Mississippi--2010 Sulfur Dioxide NAAQS (Primary)'' to read as 
follows:


Sec.  81.325   Mississippi.

* * * * *

                                Mississippi--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Adams County...............................  ..............  Attainment/Unclassifiable.
Alcorn County..............................  ..............  Attainment/Unclassifiable.
Amite County...............................  ..............  Attainment/Unclassifiable.
Attala County..............................  ..............  Attainment/Unclassifiable.
Benton County..............................  ..............  Attainment/Unclassifiable.
Bolivar County.............................  ..............  Attainment/Unclassifiable.
Calhoun County.............................  ..............  Attainment/Unclassifiable.
Carroll County.............................  ..............  Attainment/Unclassifiable.
Chickasaw County...........................  ..............  Attainment/Unclassifiable.
Choctaw County.............................  ..............  Attainment/Unclassifiable.
Claiborne County...........................  ..............  Attainment/Unclassifiable.
Clarke County..............................  ..............  Attainment/Unclassifiable.
Clay County................................  ..............  Attainment/Unclassifiable.
Coahoma County.............................  ..............  Attainment/Unclassifiable.
Copiah County..............................  ..............  Attainment/Unclassifiable.
Covington County...........................  ..............  Attainment/Unclassifiable.
DeSoto County..............................  ..............  Attainment/Unclassifiable.
Forrest County.............................  ..............  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
George County..............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Grenada County.............................  ..............  Attainment/Unclassifiable.
Hancock County.............................  ..............  Attainment/Unclassifiable.
Harrison County............................  ..............  Attainment/Unclassifiable.
Hinds County...............................  ..............  Attainment/Unclassifiable.
Holmes County..............................  ..............  Attainment/Unclassifiable.
Humphreys County...........................  ..............  Attainment/Unclassifiable.
Issaquena County...........................  ..............  Attainment/Unclassifiable.
Itawamba County............................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jasper County..............................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Jefferson Davis County.....................  ..............  Attainment/Unclassifiable.
Jones County...............................  ..............  Attainment/Unclassifiable.
Kemper County..............................  ..............  Attainment/Unclassifiable.
Lafayette County...........................  ..............  Attainment/Unclassifiable.
Lamar County, MS...........................         9/12/16  Attainment/Unclassifiable.
Lauderdale County..........................  ..............  Attainment/Unclassifiable.
Lawrence County............................  ..............  Attainment/Unclassifiable.
Leake County...............................  ..............  Attainment/Unclassifiable.
Lee County.................................  ..............  Attainment/Unclassifiable.
Leflore County.............................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Lowndes County.............................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Marion County..............................  ..............  Attainment/Unclassifiable.
Marshall County............................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Neshoba County.............................  ..............  Attainment/Unclassifiable.
Newton County..............................  ..............  Attainment/Unclassifiable.
Noxubee County.............................  ..............  Attainment/Unclassifiable.
Oktibbeha County...........................  ..............  Attainment/Unclassifiable.

[[Page 1137]]

 
Panola County..............................  ..............  Attainment/Unclassifiable.
Pearl River County.........................  ..............  Attainment/Unclassifiable.
Perry County...............................  ..............  Attainment/Unclassifiable.
Pike County................................  ..............  Attainment/Unclassifiable.
Pontotoc County............................  ..............  Attainment/Unclassifiable.
Prentiss County............................  ..............  Attainment/Unclassifiable.
Quitman County.............................  ..............  Attainment/Unclassifiable.
Rankin County..............................  ..............  Attainment/Unclassifiable.
Scott County...............................  ..............  Attainment/Unclassifiable.
Sharkey County.............................  ..............  Attainment/Unclassifiable.
Simpson County.............................  ..............  Attainment/Unclassifiable.
Smith County...............................  ..............  Attainment/Unclassifiable.
Stone County...............................  ..............  Attainment/Unclassifiable.
Sunflower County...........................  ..............  Attainment/Unclassifiable.
Tallahatchie County........................  ..............  Attainment/Unclassifiable.
Tate County................................  ..............  Attainment/Unclassifiable.
Tippah County..............................  ..............  Attainment/Unclassifiable.
Tishomingo County..........................  ..............  Attainment/Unclassifiable.
Tunica County..............................  ..............  Attainment/Unclassifiable.
Union County...............................  ..............  Attainment/Unclassifiable.
Walthall County............................  ..............  Attainment/Unclassifiable.
Warren County..............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Wayne County...............................  ..............  Attainment/Unclassifiable.
Webster County.............................  ..............  Attainment/Unclassifiable.
Wilkinson County...........................  ..............  Attainment/Unclassifiable.
Winston County.............................  ..............  Attainment/Unclassifiable.
Yalobusha County...........................  ..............  Attainment/Unclassifiable.
Yazoo County...............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
27. Section 81.326 is amended by revising the table entitled 
``Missouri--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.326  Missouri.

* * * * *

                                  Missouri--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area 1 3             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Jackson County, MO.........................         10/4/13  Nonattainment.
    Jackson County (part)
        The portion of Jackson County
         bounded by I-70/I-670 and the
         Missouri River to the north; and,
         to the west of I-435 to the state
         line separating Missouri and
         Kansas.
Jefferson County, MO.......................         10/4/13  Nonattainment.

[[Page 1138]]

 
    Jefferson County (part)
        That portion within Jefferson
         County described by connecting the
         following four sets of UTM
         coordinates moving in a clockwise
         manner:
            (Herculaneum USGS Quadrangle)
            718360.283 4250477.056
            729301.869 4250718.415
            729704.134 4236840.30
            718762.547 4236558.715
            (Festus USGS Quadrangle)
            718762.547 4236558.715
            729704.134 4236840.30
            730066.171 4223042.637
            719124.585 4222680.6
            (Selma USGS Quadrangle)
            729704.134 4236840.30
            730428.209 4236840.3
            741047.984 4223283.996
            730066.171 4223042.637
            (Valmeyer USGS Quadrangle)
            729301.869 4250718.415
            731474.096 4250798.868
            730428.209 4236840.3
            729704.134 4236840.30
Franklin-St. Charles Counties, MO..........         9/12/16  Unclassifiable.
    Franklin County (part)
        The eastern and western boundaries
         are Boles Township boundaries. The
         northern boundary is the Franklin
         County-St. Charles County Line.
         The southern boundary is
         Interstate 44.
    St. Charles County (part)
        The eastern and western boundaries
         are Boone Township boundaries. The
         northern boundary is Missouri
         Route D and Highway 94. The
         southern boundary is the Franklin
         County-St. Charles County Line.
Jackson County, MO.........................         9/12/16  Unclassifiable.
    Jackson County (part)
        The northern boundary is the county
         line separating Jackson County
         from Clay and Ray Counties. The
         eastern boundary is the county
         line separating Jackson County
         from Lafayette County. The
         southern boundary is Interstates
         70 and 470. The western boundary
         is Missouri Highway 291.
Adair County...............................  ..............  Attainment/Unclassifiable.
Andrew County..............................  ..............  Attainment/Unclassifiable.
Atchison County............................  ..............  Attainment/Unclassifiable.
Audrain County.............................  ..............  Attainment/Unclassifiable.
Barry County...............................  ..............  Attainment/Unclassifiable.
Barton County..............................  ..............  Attainment/Unclassifiable.
Bates County...............................  ..............  Attainment/Unclassifiable.
Benton County..............................  ..............  Attainment/Unclassifiable.
Bollinger County...........................  ..............  Attainment/Unclassifiable.
Boone County...............................  ..............  Attainment/Unclassifiable.
Buchanan County............................  ..............  Attainment/Unclassifiable.
Butler County..............................  ..............  Attainment/Unclassifiable.
Caldwell County............................  ..............  Attainment/Unclassifiable.
Callaway County............................  ..............  Attainment/Unclassifiable.
Camden County..............................  ..............  Attainment/Unclassifiable.
Cape Girardeau County......................  ..............  Attainment/Unclassifiable.
Carroll County.............................  ..............  Attainment/Unclassifiable.
Carter County..............................  ..............  Attainment/Unclassifiable.
Cass County................................  ..............  Attainment/Unclassifiable.
Cedar County...............................  ..............  Attainment/Unclassifiable.
Chariton County............................  ..............  Attainment/Unclassifiable.
Christian County...........................  ..............  Attainment/Unclassifiable.
Clark County...............................  ..............  Attainment/Unclassifiable.
Clay County................................  ..............  Attainment/Unclassifiable.
Clinton County.............................  ..............  Attainment/Unclassifiable.
Cole County................................  ..............  Attainment/Unclassifiable.
Cooper County..............................  ..............  Attainment/Unclassifiable.
Crawford County............................  ..............  Attainment/Unclassifiable.
Dade County................................  ..............  Attainment/Unclassifiable.
Dallas County..............................  ..............  Attainment/Unclassifiable.
Daviess County.............................  ..............  Attainment/Unclassifiable.
DeKalb County..............................  ..............  Attainment/Unclassifiable.

[[Page 1139]]

 
Dent County................................  ..............  Attainment/Unclassifiable.
Douglas County.............................  ..............  Attainment/Unclassifiable.
Dunklin County.............................  ..............  Attainment/Unclassifiable.
Franklin County (part) (remainder).........  ..............  Attainment/Unclassifiable.
Gasconade County...........................  ..............  Attainment/Unclassifiable.
Gentry County..............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Grundy County..............................  ..............  Attainment/Unclassifiable.
Harrison County............................  ..............  Attainment/Unclassifiable.
Henry County...............................  ..............  Attainment/Unclassifiable.
Hickory County.............................  ..............  Attainment/Unclassifiable.
Holt County................................  ..............  Attainment/Unclassifiable.
Howard County..............................  ..............  Attainment/Unclassifiable.
Howell County..............................  ..............  Attainment/Unclassifiable.
Jackson County (part) (remainder)..........  ..............  Attainment/Unclassifiable.
Jasper County..............................  ..............  Attainment/Unclassifiable.
Jefferson County (part) (remainder)........  ..............  Attainment/Unclassifiable.
Johnson County.............................  ..............  Attainment/Unclassifiable.
Knox County................................  ..............  Attainment/Unclassifiable.
Laclede County.............................  ..............  Attainment/Unclassifiable.
Lafayette County...........................  ..............  Attainment/Unclassifiable.
Lawrence County............................  ..............  Attainment/Unclassifiable.
Lewis County...............................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Linn County................................  ..............  Attainment/Unclassifiable.
Livingston County..........................  ..............  Attainment/Unclassifiable.
Macon County...............................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Maries County..............................  ..............  Attainment/Unclassifiable.
Marion County..............................  ..............  Attainment/Unclassifiable.
McDonald County............................  ..............  Attainment/Unclassifiable.
Mercer County..............................  ..............  Attainment/Unclassifiable.
Miller County..............................  ..............  Attainment/Unclassifiable.
Mississippi County.........................  ..............  Attainment/Unclassifiable.
Moniteau County............................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Morgan County..............................  ..............  Attainment/Unclassifiable.
Newton County..............................  ..............  Attainment/Unclassifiable.
Nodaway County.............................  ..............  Attainment/Unclassifiable.
Oregon County..............................  ..............  Attainment/Unclassifiable.
Osage County...............................  ..............  Attainment/Unclassifiable.
Ozark County...............................  ..............  Attainment/Unclassifiable.
Pemiscot County............................  ..............  Attainment/Unclassifiable.
Perry County...............................  ..............  Attainment/Unclassifiable.
Pettis County..............................  ..............  Attainment/Unclassifiable.
Phelps County..............................  ..............  Attainment/Unclassifiable.
Pike County................................  ..............  Attainment/Unclassifiable.
Platte County..............................  ..............  Attainment/Unclassifiable.
Polk County................................  ..............  Attainment/Unclassifiable.
Pulaski County.............................  ..............  Attainment/Unclassifiable.
Putnam County..............................  ..............  Attainment/Unclassifiable.
Ralls County...............................  ..............  Attainment/Unclassifiable.
Randolph County............................  ..............  Attainment/Unclassifiable.
Ray County.................................  ..............  Attainment/Unclassifiable.
Reynolds County............................  ..............  Attainment/Unclassifiable.
Ripley County..............................  ..............  Attainment/Unclassifiable.
St. Charles County (part) (remainder)......  ..............  Attainment/Unclassifiable.
St. Clair County...........................  ..............  Attainment/Unclassifiable.
St. Francois County........................  ..............  Attainment/Unclassifiable.
Ste. Genevieve County......................  ..............  Attainment/Unclassifiable.
St. Louis City.............................  ..............  Attainment/Unclassifiable.
St. Louis County...........................  ..............  Attainment/Unclassifiable.
Saline County..............................  ..............  Attainment/Unclassifiable.
Schuyler County............................  ..............  Attainment/Unclassifiable.
Scotland County............................  ..............  Attainment/Unclassifiable.
Scott County...............................         9/12/16  Attainment/Unclassifiable.
Shannon County.............................  ..............  Attainment/Unclassifiable.
Shelby County..............................  ..............  Attainment/Unclassifiable.
Stoddard County............................  ..............  Attainment/Unclassifiable.

[[Page 1140]]

 
Stone County...............................  ..............  Attainment/Unclassifiable.
Sullivan County............................  ..............  Attainment/Unclassifiable.
Taney County...............................  ..............  Attainment/Unclassifiable.
Texas County...............................  ..............  Attainment/Unclassifiable.
Vernon County..............................  ..............  Attainment/Unclassifiable.
Warren County..............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Wayne County...............................  ..............  Attainment/Unclassifiable.
Webster County.............................  ..............  Attainment/Unclassifiable.
Worth County...............................  ..............  Attainment/Unclassifiable.
Wright County..............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Iron and New Madrid Counties will be designated by December 31, 2020.

* * * * *

0
28. Section 81.327 is amended by revising the table titled ``Montana--
2010 Sulfur Dioxide NAAQS (Primary) to read as follows:


Sec.  81.327  Montana.

* * * * *

                                  Montana--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Yellowstone County (part)..................         5/10/16  Attainment.
    The area originates at the point
     defined as the southwest corner of
     Section 11, Township 1S, Range 26E.
     From that point the boundary proceeds
     north along the western section line
     of Section 11 to the point of
     intersection with the midline of
     Interstate Highway 90. From that point
     the boundary follows the midline of
     Interstate Highway 90, across the
     Yellowstone River, to the point where
     the highway midline intersects the
     northern boundary of Section 35,
     Township 1N, Range 26E. From that
     point the boundary proceeds east along
     the northern section line of Sections
     35 and 36 to the point where Old US 87/
     Hardin Road leaves the section line
     and turns southeast. The boundary
     follows the midline of Old US 87/
     Hardin Road southeast to the point
     where the road intersects the western
     boundary of the SE \1/4\ of the SE \1/
     4\ of Section 31, Township 1N, Range
     27E. From that point the boundary
     proceeds south along the \1/4\ section
     line to the southern boundary of
     Township 1N, then east to the
     northeast corner of Section 5,
     Township 1S, Range 27E. The boundary
     then proceeds south along the eastern
     section line of sections 5 and 8 to
     the southeast corner of Section 8,
     Township 1S, Range 27E, where it turns
     west and follows the south section
     line of Sections 8 and 7, Township 1S,
     Range 27E; and Sections 12 and 11,
     Township 1S, Range 26E, back to the
     point of origin.
Beaverhead County..........................  ..............  Attainment/Unclassifiable.
Big Horn County............................  ..............  Attainment/Unclassifiable.
Blaine County..............................  ..............  Attainment/Unclassifiable.
Broadwater County..........................  ..............  Attainment/Unclassifiable.
Carbon County..............................  ..............  Attainment/Unclassifiable.
Carter County..............................  ..............  Attainment/Unclassifiable.
Cascade County.............................  ..............  Attainment/Unclassifiable.
Chouteau County............................  ..............  Attainment/Unclassifiable.
Custer County..............................  ..............  Attainment/Unclassifiable.
Daniels County.............................  ..............  Attainment/Unclassifiable.
Dawson County..............................  ..............  Attainment/Unclassifiable.
Deer Lodge County..........................  ..............  Attainment/Unclassifiable.
Fallon County..............................  ..............  Attainment/Unclassifiable.
Fergus County..............................  ..............  Attainment/Unclassifiable.
Flathead County............................  ..............  Attainment/Unclassifiable.
Gallatin County............................  ..............  Attainment/Unclassifiable.
Garfield County............................  ..............  Attainment/Unclassifiable.
Glacier County.............................  ..............  Attainment/Unclassifiable.
Golden Valley County.......................  ..............  Attainment/Unclassifiable.
Granite County.............................  ..............  Attainment/Unclassifiable.
Hill County................................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Judith Basin County........................  ..............  Attainment/Unclassifiable.

[[Page 1141]]

 
Lake County................................  ..............  Attainment/Unclassifiable.
Lewis and Clark County.....................  ..............  Attainment/Unclassifiable.
Liberty County.............................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
McCone County..............................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Meagher County.............................  ..............  Attainment/Unclassifiable.
Mineral County.............................  ..............  Attainment/Unclassifiable.
Missoula County............................  ..............  Attainment/Unclassifiable.
Musselshell County.........................  ..............  Attainment/Unclassifiable.
Park County................................  ..............  Attainment/Unclassifiable.
Petroleum County...........................  ..............  Attainment/Unclassifiable.
Phillips County............................  ..............  Attainment/Unclassifiable.
Pondera County.............................  ..............  Attainment/Unclassifiable.
Powder River County........................  ..............  Attainment/Unclassifiable.
Powell County..............................  ..............  Attainment/Unclassifiable.
Prairie County.............................  ..............  Attainment/Unclassifiable.
Ravalli County.............................  ..............  Attainment/Unclassifiable.
Richland County............................  ..............  Attainment/Unclassifiable.
Roosevelt County...........................  ..............  Attainment/Unclassifiable.
Rosebud County.............................  ..............  Attainment/Unclassifiable.
Sanders County.............................  ..............  Attainment/Unclassifiable.
Sheridan County............................  ..............  Attainment/Unclassifiable.
Silver Bow County..........................  ..............  Attainment/Unclassifiable.
Stillwater County..........................  ..............  Attainment/Unclassifiable.
Sweet Grass County.........................  ..............  Attainment/Unclassifiable.
Teton County...............................  ..............  Attainment/Unclassifiable.
Toole County...............................  ..............  Attainment/Unclassifiable.
Treasure County............................  ..............  Attainment/Unclassifiable.
Valley County..............................  ..............  Attainment/Unclassifiable.
Wheatland County...........................  ..............  Attainment/Unclassifiable.
Wibaux County..............................  ..............  Attainment/Unclassifiable.
Yellowstone County (part) (remainder)......  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
29. Section 81.328 is amended by revising the table entitled 
``Nebraska--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.328  Nebraska.

* * * * *

              Nebraska--2010 Sulfur Dioxide NAAQS (Primary)
------------------------------------------------------------------------
                                               Designation
      Designated area 1 3       ----------------------------------------
                                    Date \2\               Type
------------------------------------------------------------------------
Lancaster County...............         9/12/16  Unclassifiable.
Statewide:.....................  ..............  Attainment/
                                                  Unclassifiable.
    Adams County...............
    Antelope County............
    Arthur County..............
    Banner County..............
    Blaine County..............
    Boone County...............
    Box Butte County...........
    Boyd County................
    Brown County...............
    Buffalo County.............
    Burt County................
    Butler County..............
    Cass County................
    Cedar County...............
    Chase County...............
    Cherry County..............
    Cheyenne County............

[[Page 1142]]

 
    Clay County................
    Colfax County..............
    Cuming County..............
    Custer County..............
    Dakota County..............
    Dawes County...............
    Dawson County..............
    Deuel County...............
    Dixon County...............
    Dodge County...............
    Dundy County...............
    Fillmore County............
    Franklin County............
    Frontier County............
    Furnas County..............
    Gage County................
    Garden County..............
    Garfield County............
    Gosper County..............
    Grant County...............
    Greeley County.............
    Hall County................
    Hamilton County............
    Harlan County..............
    Hayes County...............
    Hitchcock County...........
    Holt County................
    Hooker County..............
    Howard County..............
    Jefferson County...........
    Johnson County.............
    Kearney County.............
    Keith County...............
    Keya Paha County...........
    Kimball County.............
    Knox County................
    Lincoln County.............         9/12/16  Attainment/
                                                  Unclassifiable.
    Logan County...............
    Loup County................
    Madison County.............
    McPherson County...........
    Merrick County.............
    Morrill County.............
    Nance County...............
    Nemaha County..............
    Nuckolls County............
    Otoe County................         9/12/16  Attainment/
                                                  Unclassifiable.
    Pawnee County..............
    Perkins County.............
    Phelps County..............
    Pierce County..............
    Platte County..............
    Polk County................
    Red Willow County..........
    Richardson County..........
    Rock County................
    Saline County..............
    Sarpy County...............
    Saunders County............
    Scotts Bluff County........
    Seward County..............
    Sheridan County............
    Sherman County.............
    Sioux County...............
    Stanton County.............
    Thayer County..............
    Thomas County..............
    Thurston County............

[[Page 1143]]

 
    Valley County..............
    Washington County..........
    Wayne County...............
    Webster County.............
    Wheeler County.............
    York County................
------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise
  specified. EPA is not determining the boundaries of any area of Indian
  country in this table, including any area of Indian country located in
  the larger designation area. The inclusion of any Indian country in
  the designation area is not a determination that the state has
  regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Douglas County will be designated by December 31, 2020.

* * * * *

0
30. Section 81.329 is amended by adding a table entitled ``Nevada--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table ``Nevada--1971 
Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.329  Nevada.

* * * * *

                                   Nevada--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
State of Nevada \3\........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Rest of State refers to hydrographic areas as shown on the State of Nevada Division of Water Resources' map
  titled ``Water Resources and Inter-basin Flows'' (September 1971), as revised to include a division of Carson
  Desert (area 101) into two areas, a smaller area 101 and area 101A, and a division of Boulder Flat (area 61)
  into an Upper Unit 61 and a Lower Unit 61. See also 67 FR 12474 (March 19, 2002).

* * * * *

0
31. Section 81.330 is amended by revising the table entitled ``New 
Hampshire--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.330  New Hampshire.

* * * * *

                               New Hampshire--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Central New Hampshire, NH..................         10/4/13  Nonattainment.
    Hillsborough County (part)
        Goffstown Town
    Merrimack County (part)
        Allenstown Town, Bow Town,
         Chichester Town, Dunbarton Town,
         Epsom Town, Hooksett Town, Loudon
         Town, Pembroke Town, Pittsfield
         Town, City of Concord
    Rockingham County (part)
        Candia Town, Deerfield Town,
         Northwood Town
Rest of State:
    Belknap County.........................  ..............  Attainment/Unclassifiable.
    Carroll County.........................  ..............  Attainment/Unclassifiable.
    Cheshire County........................  ..............  Attainment/Unclassifiable.
    Coos County............................  ..............  Attainment/Unclassifiable.
    Grafton County.........................  ..............  Attainment/Unclassifiable.
    Hillsborough County (part).............  ..............  Attainment/Unclassifiable.
        Amherst Town, Antrim Town, Bedford
         Town, Bennington Town, Brookline
         Town, Deering Town, Francestown
         Town, Greenfield Town, Greenville
         Town, Hancock Town, Hillsborough
         Town, Hollis Town, Hudson Town,
         Litchfield Town, Lyndeborough
         Town, City of Manchester, Mason
         Town, Merrimack Town, Milford
         Town, Mont Vernon Town, City of
         Nashua, New Boston Town, New
         Ipswich Town, Pelham Town,
         Peterborough Town, Sharon Town,
         Temple Town, Weare Town, Wilton
         Town, Windsor Town
    Merrimack County (part)................  ..............  Attainment/Unclassifiable.

[[Page 1144]]

 
        Andover Town, Boscawen Town,
         Bradford Town, Canterbury Town,
         Danbury Town, City of Franklin,
         Henniker Town, Hill Town,
         Hopkinton Town, New London Town,
         Newbury Town, Northfield Town,
         Salisbury Town, Sutton Town,
         Warner Town, Webster Town, Wilmot
         Town
    Rockingham County (part)...............  ..............  Attainment/Unclassifiable.
        Atkinson Town, Auburn Town,
         Brentwood Town, Chester Town,
         Danville Town, Derry Town, East
         Kingston Town, Epping Town, Exeter
         Town, Fremont Town, Greenland
         Town, Hampstead Town, Hampton
         Town, Hampton Falls Town,
         Kensington Town, Kingston Town,
         Londonderry Town, New Castle Town,
         Newfields Town, Newington Town,
         Newmarket Town, Newton Town, North
         Hampton Town, Nottingham Town,
         Plainstow Town, City of
         Portsmouth, Raymond Town, Rye
         Town, Salem Town, Sandown Town,
         Seabrook Town, South Hampton Town,
         Stratham Town, Windham Town
    Strafford County.......................  ..............  Attainment/Unclassifiable.
    Sullivan County........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
32. Section 81.331 is amended by adding a table entitled ``New Jersey--
2010 Sulfur Dioxide NAAQS (Primary)'' following the table ``New 
Jersey--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as 
follows:


Sec.  81.331  New Jersey.

* * * * *

                                 New Jersey--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Entire State...............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
33. Section 81.332 is amended by adding a table titled ``New Mexico--
2010 Sulfur Dioxide NAAQS (Primary)'' following the table titled ``New 
Mexico--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as 
follows:


Sec.  81.332  New Mexico.

* * * * *

                                 New Mexico--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Bernalillo County..........................  ..............  Attainment/Unclassifiable.
Catron County..............................  ..............  Attainment/Unclassifiable.
Chaves County..............................  ..............  Attainment/Unclassifiable.
Cibola County..............................  ..............  Attainment/Unclassifiable.
Colfax County..............................  ..............  Attainment/Unclassifiable.
Curry County...............................  ..............  Attainment/Unclassifiable.
De Baca County.............................  ..............  Attainment/Unclassifiable.
Dona Ana County............................  ..............  Attainment/Unclassifiable.
Eddy County................................  ..............  Attainment/Unclassifiable.
Grant County...............................  ..............  Attainment/Unclassifiable.
Guadalupe County...........................  ..............  Attainment/Unclassifiable.
Harding County.............................  ..............  Attainment/Unclassifiable.
Hidalgo County.............................  ..............  Attainment/Unclassifiable.
Lea County.................................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Los Alamos County..........................  ..............  Attainment/Unclassifiable.
Luna County................................  ..............  Attainment/Unclassifiable.
McKinley County............................  ..............  Attainment/Unclassifiable.
Mora County................................  ..............  Attainment/Unclassifiable.

[[Page 1145]]

 
Quay County................................  ..............  Attainment/Unclassifiable.
Rio Arriba County..........................  ..............  Attainment/Unclassifiable.
Roosevelt County...........................  ..............  Attainment/Unclassifiable.
San Juan County............................  ..............  Attainment/Unclassifiable.
San Miguel County..........................  ..............  Attainment/Unclassifiable.
Sandoval County............................  ..............  Attainment/Unclassifiable.
Santa Fe County............................  ..............  Attainment/Unclassifiable.
Socorro County.............................  ..............  Attainment/Unclassifiable.
Taos County................................  ..............  Attainment/Unclassifiable.
Torrance County............................  ..............  Attainment/Unclassifiable.
Union County...............................  ..............  Attainment/Unclassifiable.
Valencia County............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country. The lands of the
  Navajo Nation, including those lands located geographically within New Mexico, are excluded, as they are
  separately designated under Section 81.303.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
34. Section 81.333 is amended by revising the table entitled ``New 
York--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.333  New York.

* * * * *

                                  New York--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
          Designated area \1\ \3\           --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Monroe County..............................  ..............  Unclassifiable.
Erie-Niagara, NY...........................         9/12/16  Attainment/Unclassifiable.
    Erie County
    Niagara County
Albany County..............................  ..............  Attainment/Unclassifiable.
Allegany County............................  ..............  Attainment/Unclassifiable.
Broome County..............................  ..............  Attainment/Unclassifiable.
Bronx County...............................  ..............  Attainment/Unclassifiable.
Cattaraugus County.........................  ..............  Attainment/Unclassifiable.
Chautauqua County..........................  ..............  Attainment/Unclassifiable.
Chemung County.............................  ..............  Attainment/Unclassifiable.
Chenango County............................  ..............  Attainment/Unclassifiable.
Clinton County.............................  ..............  Attainment/Unclassifiable.
Columbia County............................  ..............  Attainment/Unclassifiable.
Cortland County............................  ..............  Attainment/Unclassifiable.
Delaware County............................  ..............  Attainment/Unclassifiable.
Dutchess County............................  ..............  Attainment/Unclassifiable.
Essex County...............................  ..............  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
Fulton County..............................  ..............  Attainment/Unclassifiable.
Genesee County.............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Hamilton County............................  ..............  Attainment/Unclassifiable.
Herkimer County............................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Kings County...............................  ..............  Attainment/Unclassifiable.
Lewis County...............................  ..............  Attainment/Unclassifiable.
Livingston County..........................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Nassau County..............................  ..............  Attainment/Unclassifiable.
New York County............................  ..............  Attainment/Unclassifiable.
Oneida County..............................  ..............  Attainment/Unclassifiable.
Onondaga County............................  ..............  Attainment/Unclassifiable.
Ontario County.............................  ..............  Attainment/Unclassifiable.
Orange County..............................  ..............  Attainment/Unclassifiable.
Orleans County.............................  ..............  Attainment/Unclassifiable.
Oswego County..............................  ..............  Attainment/Unclassifiable.
Otsego County..............................  ..............  Attainment/Unclassifiable.
Putnam County..............................  ..............  Attainment/Unclassifiable.

[[Page 1146]]

 
Queens County..............................  ..............  Attainment/Unclassifiable.
Rensselaer County..........................  ..............  Attainment/Unclassifiable.
Richmond County............................  ..............  Attainment/Unclassifiable.
Rockland County............................  ..............  Attainment/Unclassifiable.
Saratoga County............................  ..............  Attainment/Unclassifiable.
Schenectady County.........................  ..............  Attainment/Unclassifiable.
Schoharie County...........................  ..............  Attainment/Unclassifiable.
Schuyler County............................  ..............  Attainment/Unclassifiable.
Steuben County.............................  ..............  Attainment/Unclassifiable.
Suffolk County.............................  ..............  Attainment/Unclassifiable.
Sullivan County............................  ..............  Attainment/Unclassifiable.
Tioga County...............................  ..............  Attainment/Unclassifiable.
Ulster County..............................  ..............  Attainment/Unclassifiable.
Warren County..............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Wayne County...............................  ..............  Attainment/Unclassifiable.
Westchester County.........................  ..............  Attainment/Unclassifiable.
Wyoming County.............................  ..............  Attainment/Unclassifiable.
Yates County...............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Cayuga, St. Lawrence, Seneca, and Tompkins Counties will be designated by December 31, 2020.

* * * * *

0
35. Section 81.334 is amended by revising the table entitled ``North 
Carolina--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.334  North Carolina.

* * * * *

                               North Carolina--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
              Designated area               --------------------------------------------------------------------
                                                Date \1\                             Type
----------------------------------------------------------------------------------------------------------------
Brunswick County, NC \2\...................         9/12/16  Unclassifiable.
    Brunswick County
        Lockwood Folly Township, Northwest
         Township, Shallotte Township,
         Smithville Township, Town Creek
         Township, Waccamaw Township
Rest of State: \3\
Alamance County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Alexander County...........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Alleghany County...........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Anson County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Ashe County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Avery County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Beaufort County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Bertie County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Bladen County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Buncombe County (part) \4\.................  ..............  Attainment/Unclassifiable.
        All Townships except Limestone
         Township
Burke County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Cabarrus County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Caldwell County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Camden County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Carteret County............................  ..............  Attainment/Unclassifiable.

[[Page 1147]]

 
        Each Individual Township
Caswell County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Catawba County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Chatham County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Cherokee County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Chowan County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Clay County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Cleveland County...........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Columbus County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Craven County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Cumberland County..........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Currituck County...........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Dare County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Davidson County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Davie County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Duplin County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Durham County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Edgecombe County...........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Forsyth County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Franklin County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Gaston County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Gates County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Graham County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Granville County...........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Greene County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Guilford County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Halifax County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Harnett County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Haywood County (part) \4\..................  ..............  Attainment/Unclassifiable.
        All Townships except Beaverdam
         Township
Henderson County...........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Hertford County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Hoke County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Hyde County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Iredell County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Jackson County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Johnston County............................  ..............  Attainment/Unclassifiable.

[[Page 1148]]

 
        Each Individual Township
Jones County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Lee County.................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Lenoir County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Lincoln County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
McDowell County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Macon County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Madison County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Martin County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Mecklenburg County.........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Mitchell County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Montgomery County..........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Moore County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Nash County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
New Hanover County.........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Northampton County.........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Onslow County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Orange County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Pamlico County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Pasquotank County..........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Pender County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Perquimans County..........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Person County (part) \4\...................  ..............  Attainment/Unclassifiable.
        All Townships except Cunningham
         Township
Pitt County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Polk County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Randolph County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Richmond County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Robeson County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Rockingham County..........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Rowan County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Rutherford County..........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Sampson County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Scotland County............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Stanly County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Stokes County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Surry County...............................  ..............  Attainment/Unclassifiable.

[[Page 1149]]

 
        Each Individual Township
Swain County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Transylvania County........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Tyrrell County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Union County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Vance County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Wake County................................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Warren County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Washington County..........................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Watauga County.............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Wayne County...............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Wilkes County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Wilson County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Yadkin County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
Yancey County..............................  ..............  Attainment/Unclassifiable.
        Each Individual Township
----------------------------------------------------------------------------------------------------------------
\1\ This date is April 9, 2018, unless otherwise noted.
\2\ Excludes Indian country located in each area, if any, unless otherwise specified.
\3\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\4\ The remaining portions of Buncombe, Haywood, and Person Counties will be designated by December 31, 2020.

* * * * *

0
36. Section 81.335 is amended by revising the table entitled ``North 
Dakota--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.335   North Dakota.

* * * * *

                                North Dakota--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
McLean County/Eastern Mercer County, ND....         9/12/16  Attainment/Unclassifiable.
    McLean County
    Mercer County (part)
        Area east of CR-37/ND 31, east/
         north of ND 200 ALT, west of the
         eastern border of Mercer County/
         Missouri River, south of the Knife
         River National Historic Site.
Central Mercer County, ND..................         9/12/16  Attainment/Unclassifiable.
    Mercer County (part)
        Area west of ND 49/61st Ave SW,
         north of Co. Rd 15/17th St. SW,
         east of Co. Rd 13, south and east
         of the town Zap, south of 8th St.
         SW/ND 200
Rest of State: \3\.........................  ..............  Attainment/Unclassifiable.
    Adams County
    Barnes County
    Benson County
    Billings County
    Bottineau County
    Bowman County
    Burke County
    Burleigh County
    Cass County
    Cavalier County
    Dickey County
    Divide County

[[Page 1150]]

 
    Dunn County
    Eddy County
    Emmons County
    Foster County
    Golden Valley County
    Grand Forks County
    Grant County
    Griggs County
    Hettinger County
    Kidder County
    LaMoure County
    Logan County
    McHenry County
    McIntosh County
    McKenzie County
    Mercer County (part) (remainder)
    Morton County
    Mountrail County
    Nelson County
    Oliver County
    Pembina County
    Pierce County
    Ramsey County
    Ransom County
    Renville County
    Richland County
    Rolette County
    Sargent County
    Sheridan County
    Sioux County
    Slope County
    Stark County
    Steele County
    Stutsman County
    Towner County
    Traill County
    Walsh County
    Ward County
    Wells County
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Williams County will be designated by December 31, 2020.

* * * * *

0
37. Section 81.336 is amended by revising the table entitled ``Ohio--
2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.336   Ohio.

* * * * *

                                    Ohio--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Campbell-Clermont Counties, KY-OH..........        11/21/16  Attainment.
    Clermont County (part)
        Pierce Township
Lake County, OH............................         10/4/13  Nonattainment.
    Lake County
Muskingum River, OH........................         10/4/13  Nonattainment.
    Morgan County (part)
        Center Township
    Washington County (part)
        Waterford Township
Steubenville, OH-WV........................         10/4/13  Nonattainment.

[[Page 1151]]

 
    Jefferson County (part)
        Cross Creek Township, Steubenville
         Township, Warren Township, Wells
         Township, Steubenville City
Gallia County, OH..........................         9/12/16  Unclassifiable.
    Gallia County
    Meigs County (part)
        Bedford, Columbia, Rutland, Salem,
         Salisbury, and Scipio Townships
Clermont County, Ohio \2\..................         9/12/16  Attainment/Unclassifiable.
    Clermont County (part)
        Clermont County excluding Pierce
         Township
Adams County...............................  ..............  Attainment/Unclassifiable.
Allen County...............................  ..............  Attainment/Unclassifiable.
Ashland County.............................  ..............  Attainment/Unclassifiable.
Ashtabula County...........................  ..............  Attainment/Unclassifiable.
Athens County..............................  ..............  Attainment/Unclassifiable.
Auglaize County............................  ..............  Attainment/Unclassifiable.
Belmont County.............................  ..............  Attainment/Unclassifiable.
Brown County...............................  ..............  Attainment/Unclassifiable.
Butler County..............................  ..............  Attainment/Unclassifiable
Carroll County.............................  ..............  Attainment/Unclassifiable.
Champaign County...........................  ..............  Attainment/Unclassifiable.
Clark County...............................  ..............  Attainment/Unclassifiable.
Clinton County.............................  ..............  Attainment/Unclassifiable.
Columbiana County..........................  ..............  Attainment/Unclassifiable.
Coshocton County...........................  ..............  Attainment/Unclassifiable.
Crawford County............................  ..............  Attainment/Unclassifiable.
Cuyahoga County............................  ..............  Attainment/Unclassifiable.
Darke County...............................  ..............  Attainment/Unclassifiable.
Defiance County............................  ..............  Attainment/Unclassifiable.
Delaware County............................  ..............  Attainment/Unclassifiable.
Erie County................................  ..............  Attainment/Unclassifiable.
Fairfield County...........................  ..............  Attainment/Unclassifiable.
Fayette County.............................  ..............  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
Fulton County..............................  ..............  Attainment/Unclassifiable.
Geauga County..............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Guernsey County............................  ..............  Attainment/Unclassifiable.
Hamilton County............................  ..............  Attainment/Unclassifiable.
Hancock County.............................  ..............  Attainment/Unclassifiable.
Hardin County..............................  ..............  Attainment/Unclassifiable.
Harrison County............................  ..............  Attainment/Unclassifiable.
Henry County...............................  ..............  Attainment/Unclassifiable.
Highland County............................  ..............  Attainment/Unclassifiable.
Hocking County.............................  ..............  Attainment/Unclassifiable.
Holmes County..............................  ..............  Attainment/Unclassifiable.
Huron County...............................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jefferson County (part) (remainder)........  ..............  Attainment/Unclassifiable.
Knox County................................  ..............  Attainment/Unclassifiable.
Lawrence County............................  ..............  Attainment/Unclassifiable.
Licking County.............................  ..............  Attainment/Unclassifiable.
Logan County...............................  ..............  Attainment/Unclassifiable.
Lorain County..............................  ..............  Attainment/Unclassifiable.
Lucas County...............................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Mahoning County............................  ..............  Attainment/Unclassifiable.
Marion County..............................  ..............  Attainment/Unclassifiable.
Medina County..............................  ..............  Attainment/Unclassifiable.
Meigs County (part) (remainder)............  ..............  Attainment/Unclassifiable.
Mercer County..............................  ..............  Attainment/Unclassifiable.
Miami County...............................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Morgan County (part) (remainder)...........  ..............  Attainment/Unclassifiable.
Morrow County..............................  ..............  Attainment/Unclassifiable.
Muskingum County...........................  ..............  Attainment/Unclassifiable.
Noble County...............................  ..............  Attainment/Unclassifiable.
Ottawa County..............................  ..............  Attainment/Unclassifiable.
Paulding County............................  ..............  Attainment/Unclassifiable.

[[Page 1152]]

 
Perry County...............................  ..............  Attainment/Unclassifiable.
Pickaway County............................  ..............  Attainment/Unclassifiable.
Pike County................................  ..............  Attainment/Unclassifiable.
Portage County.............................  ..............  Attainment/Unclassifiable.
Preble County..............................  ..............  Attainment/Unclassifiable.
Putnam County..............................  ..............  Attainment/Unclassifiable.
Richland County............................  ..............  Attainment/Unclassifiable.
Ross County................................  ..............  Attainment/Unclassifiable.
Sandusky County............................  ..............  Attainment/Unclassifiable.
Scioto County..............................  ..............  Attainment/Unclassifiable.
Seneca County..............................  ..............  Attainment/Unclassifiable.
Shelby County..............................  ..............  Attainment/Unclassifiable.
Stark County...............................  ..............  Attainment/Unclassifiable.
Summit County..............................  ..............  Attainment/Unclassifiable.
Trumbull County............................  ..............  Attainment/Unclassifiable.
Tuscarawas County..........................  ..............  Attainment/Unclassifiable.
Union County...............................  ..............  Attainment/Unclassifiable.
Van Wert County............................  ..............  Attainment/Unclassifiable.
Vinton County..............................  ..............  Attainment/Unclassifiable.
Warren County..............................  ..............  Attainment/Unclassifiable.
Washington County (part) (remainder).......  ..............  Attainment/Unclassifiable.
Wayne County...............................  ..............  Attainment/Unclassifiable.
Williams County............................  ..............  Attainment/Unclassifiable.
Wood County................................  ..............  Attainment/Unclassifiable.
Wyandot County.............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
38. Section 81.337 is amended by revising the table entitled 
``Oklahoma--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.337   Oklahoma.

* * * * *

                                  Oklahoma--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area 1 3             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Adair County...............................  ..............  Attainment/Unclassifiable.
Alfalfa County.............................  ..............  Attainment/Unclassifiable.
Atoka County...............................  ..............  Attainment/Unclassifiable.
Beaver County..............................  ..............  Attainment/Unclassifiable.
Beckham County.............................  ..............  Attainment/Unclassifiable.
Blaine County..............................  ..............  Attainment/Unclassifiable.
Bryan County...............................  ..............  Attainment/Unclassifiable.
Caddo County...............................  ..............  Attainment/Unclassifiable.
Canadian County............................  ..............  Attainment/Unclassifiable.
Carter County..............................  ..............  Attainment/Unclassifiable.
Cherokee County............................  ..............  Attainment/Unclassifiable.
Choctaw County.............................         9/12/16  Attainment/Unclassifiable.
Cimarron County............................  ..............  Attainment/Unclassifiable.
Cleveland County...........................  ..............  Attainment/Unclassifiable.
Coal County................................  ..............  Attainment/Unclassifiable.
Comanche County............................  ..............  Attainment/Unclassifiable.
Cotton County..............................  ..............  Attainment/Unclassifiable.
Craig County...............................  ..............  Attainment/Unclassifiable.
Creek County...............................  ..............  Attainment/Unclassifiable.
Custer County..............................  ..............  Attainment/Unclassifiable.
Delaware County............................  ..............  Attainment/Unclassifiable.
Dewey County...............................  ..............  Attainment/Unclassifiable.
Ellis County...............................  ..............  Attainment/Unclassifiable.
Garvin County..............................  ..............  Attainment/Unclassifiable.
Grady County...............................  ..............  Attainment/Unclassifiable.
Grant County...............................  ..............  Attainment/Unclassifiable.
Greer County...............................  ..............  Attainment/Unclassifiable.
Harmon County..............................  ..............  Attainment/Unclassifiable.

[[Page 1153]]

 
Harper County..............................  ..............  Attainment/Unclassifiable.
Haskell County.............................  ..............  Attainment/Unclassifiable.
Hughes County..............................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Johnston County............................  ..............  Attainment/Unclassifiable.
Kay County.................................  ..............  Attainment/Unclassifiable.
Kingfisher County..........................  ..............  Attainment/Unclassifiable.
Kiowa County...............................  ..............  Attainment/Unclassifiable.
Latimer County.............................  ..............  Attainment/Unclassifiable.
Le Flore County............................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Logan County...............................  ..............  Attainment/Unclassifiable.
Love County................................  ..............  Attainment/Unclassifiable.
McClain County.............................  ..............  Attainment/Unclassifiable.
McCurtain County...........................  ..............  Attainment/Unclassifiable.
McIntosh County............................  ..............  Attainment/Unclassifiable.
Major County...............................  ..............  Attainment/Unclassifiable.
Marshall County............................  ..............  Attainment/Unclassifiable.
Murray County..............................  ..............  Attainment/Unclassifiable.
Noble County...............................         9/12/16  Attainment/Unclassifiable.
Nowata County..............................  ..............  Attainment/Unclassifiable.
Okfuskee County............................  ..............  Attainment/Unclassifiable.
Oklahoma County............................  ..............  Attainment/Unclassifiable.
Okmulgee County............................  ..............  Attainment/Unclassifiable.
Osage County...............................  ..............  Attainment/Unclassifiable.
Ottawa County..............................  ..............  Attainment/Unclassifiable.
Pawnee County..............................  ..............  Attainment/Unclassifiable.
Payne County...............................  ..............  Attainment/Unclassifiable.
Pittsburg County...........................  ..............  Attainment/Unclassifiable.
Pontotoc County............................  ..............  Attainment/Unclassifiable.
Pottawatomie County........................  ..............  Attainment/Unclassifiable.
Pushmataha County..........................  ..............  Attainment/Unclassifiable.
Roger Mills County.........................  ..............  Attainment/Unclassifiable.
Rogers County..............................  ..............  Attainment/Unclassifiable.
Seminole County............................  ..............  Attainment/Unclassifiable.
Sequoyah County............................  ..............  Attainment/Unclassifiable.
Stephens County............................  ..............  Attainment/Unclassifiable.
Texas County...............................  ..............  Attainment/Unclassifiable.
Tillman County.............................  ..............  Attainment/Unclassifiable.
Tulsa County...............................  ..............  Attainment/Unclassifiable.
Wagoner County.............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Washita County.............................  ..............  Attainment/Unclassifiable.
Woods County...............................  ..............  Attainment/Unclassifiable.
Woodward County............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Garfield and Mayes Counties will be designated by December 31, 2020.

* * * * *

0
39. Section 81.338 is amended by adding a table titled ``Oregon--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table titled ``Oregon--
1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.338   Oregon.

* * * * *

                                   Oregon--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Entire State...............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.


[[Page 1154]]

* * * * *

0
40. Section 81.339 is amended by revising the table entitled 
``Pennsylvania--2010 Sulfur Dioxide NAAQS (Primary)'' to read as 
follows:


Sec.  81.339  Pennsylvania.

* * * * *

                                Pennsylvania--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area 1 3             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Allegheny, PA
    Allegheny County (part)................         10/4/13  Nonattainment.
        The area consisting of:
        Borough of Braddock
        Borough of Dravosburg
        Borough of East McKeesport
        Borough of East Pittsburgh
        Borough of Elizabeth
        Borough of Glassport
        Borough of Jefferson Hills
        Borough of Liberty
        Borough of Lincoln
        Borough of North Braddock
        Borough of Pleasant Hills
        Borough of Port Vue
        Borough of Versailles
        Borough of Wall
        Borough of West Elizabeth
        Borough of West Mifflin
        City of Clairton
        City of Duquesne
        City of McKeesport
        Elizabeth Township
        Forward Township
        North Versailles Township
Beaver, PA
    Beaver County (part)...................         10/4/13  Nonattainment.
        Area consisting of Industry
         Borough, Shippingport Borough,
         Midland Borough, Brighton
         Township, Potter Township and
         Vanport Township
Indiana, PA................................         10/4/13  Nonattainment.
    Indiana County
    Armstrong County (part)
        Area consisting of Plumcreek
         Township, South Bend Township, and
         Elderton Borough
Warren, PA
    Warren County (part)...................         10/4/13  Nonattainment.
        Area consisting of Conewango
         Township, Glade Township, Pleasant
         Township, and the City of Warren
Allegheny (part)...........................  ..............  Unclassifiable.
    Remainder of County
Cambria County.............................  ..............  Unclassifiable.
Carbon-Schuylkill Area.....................  ..............  Unclassifiable.
    Carbon County
    Schuylkill County
Clearfield County..........................  ..............  Unclassifiable.
Lawrence County............................  ..............  Unclassifiable.
Lehigh-Northampton Area....................  ..............  Unclassifiable.
    Lehigh County
    Northampton County
Adams County...............................  ..............  Attainment/Unclassifiable.
Armstrong County (part)....................  ..............  Attainment/Unclassifiable.
    Remainder of County
Beaver County (part).......................  ..............  Attainment/Unclassifiable.
    Remainder of County
Bedford County.............................  ..............  Attainment/Unclassifiable.
Berks County...............................  ..............  Attainment/Unclassifiable.
Blair County...............................  ..............  Attainment/Unclassifiable.
Bradford County............................  ..............  Attainment/Unclassifiable.
Bucks County...............................  ..............  Attainment/Unclassifiable.
Butler County..............................  ..............  Attainment/Unclassifiable.
Cameron County.............................  ..............  Attainment/Unclassifiable.
Centre County..............................  ..............  Attainment/Unclassifiable.
Chester County.............................  ..............  Attainment/Unclassifiable.
Clarion County.............................  ..............  Attainment/Unclassifiable.
Clinton County.............................  ..............  Attainment/Unclassifiable.
Columbia County............................  ..............  Attainment/Unclassifiable.

[[Page 1155]]

 
Crawford County............................  ..............  Attainment/Unclassifiable.
Cumberland County..........................  ..............  Attainment/Unclassifiable.
Dauphin County.............................  ..............  Attainment/Unclassifiable.
Elk County.................................  ..............  Attainment/Unclassifiable.
Erie County................................  ..............  Attainment/Unclassifiable.
Fayette County.............................  ..............  Attainment/Unclassifiable.
Forest County..............................  ..............  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
Fulton County..............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Huntingdon County..........................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Juniata County.............................  ..............  Attainment/Unclassifiable.
Lackawanna County..........................  ..............  Attainment/Unclassifiable.
Lancaster County...........................  ..............  Attainment/Unclassifiable.
Lebanon County.............................  ..............  Attainment/Unclassifiable.
Luzerne County.............................  ..............  Attainment/Unclassifiable.
Lycoming County............................  ..............  Attainment/Unclassifiable.
McKean County..............................  ..............  Attainment/Unclassifiable.
Mercer County..............................  ..............  Attainment/Unclassifiable.
Mifflin County.............................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Montour County.............................  ..............  Attainment/Unclassifiable.
Northumberland County......................  ..............  Attainment/Unclassifiable.
Perry County...............................  ..............  Attainment/Unclassifiable.
Philadelphia-Delaware......................  ..............  Attainment/Unclassifiable.
    Delaware County
    Philadelphia County
Pike County................................  ..............  Attainment/Unclassifiable.
Potter County..............................  ..............  Attainment/Unclassifiable.
Snyder County..............................  ..............  Attainment/Unclassifiable.
Somerset County............................  ..............  Attainment/Unclassifiable.
Sullivan County............................  ..............  Attainment/Unclassifiable.
Susquehanna County.........................  ..............  Attainment/Unclassifiable.
Tioga County...............................  ..............  Attainment/Unclassifiable.
Union County...............................  ..............  Attainment/Unclassifiable.
Venango County.............................  ..............  Attainment/Unclassifiable.
Warren County (part).......................  ..............  Attainment/Unclassifiable.
    Remainder of County
Washington County..........................  ..............  Attainment/Unclassifiable.
Wayne County...............................  ..............  Attainment/Unclassifiable.
Westmoreland County........................  ..............  Attainment/Unclassifiable.
Wyoming County.............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ York County will be designated by December 31, 2020.

* * * * *

0
41. Section 81.340 is amended by adding a table titled ``Rhode Island 
--2010 Sulfur Dioxide NAAQS (Primary)'' following the table titled 
``Rhode Island --1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to 
read as follows:


Sec.  81.340  Rhode Island.

* * * * *

                                Rhode Island--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
State of Rhode Island......................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.


[[Page 1156]]

* * * * *

0
42. Section 81.341 is amended by adding a new table titled ``South 
Carolina--2010 Sulfur Dioxide NAAQS (Primary)'' following the table 
titled ``South Carolina--1971 Sulfur Dioxide NAAQS (Primary and 
Secondary)'' to read as follows:


Sec.  81.341  South Carolina.

* * * * *

                               South Carolina--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Abbeville County...........................  ..............  Attainment/Unclassifiable.
Aiken County...............................  ..............  Attainment/Unclassifiable.
Allendale County...........................  ..............  Attainment/Unclassifiable.
Anderson County............................  ..............  Attainment/Unclassifiable.
Bamberg County.............................  ..............  Attainment/Unclassifiable.
Barnwell County............................  ..............  Attainment/Unclassifiable.
Beaufort County............................  ..............  Attainment/Unclassifiable.
Berkeley County............................  ..............  Attainment/Unclassifiable.
Calhoun County.............................  ..............  Attainment/Unclassifiable.
Charleston County..........................  ..............  Attainment/Unclassifiable.
Cherokee County............................  ..............  Attainment/Unclassifiable.
Chester County.............................  ..............  Attainment/Unclassifiable.
Chesterfield County........................  ..............  Attainment/Unclassifiable.
Clarendon County...........................  ..............  Attainment/Unclassifiable.
Colleton County............................  ..............  Attainment/Unclassifiable.
Darlington County..........................  ..............  Attainment/Unclassifiable.
Dillon County..............................  ..............  Attainment/Unclassifiable.
Dorchester County..........................  ..............  Attainment/Unclassifiable.
Edgefield County...........................  ..............  Attainment/Unclassifiable.
Fairfield County...........................  ..............  Attainment/Unclassifiable.
Florence County............................  ..............  Attainment/Unclassifiable.
Georgetown County..........................  ..............  Attainment/Unclassifiable.
Greenville County..........................  ..............  Attainment/Unclassifiable.
Greenwood County...........................  ..............  Attainment/Unclassifiable.
Hampton County.............................  ..............  Attainment/Unclassifiable.
Horry County...............................  ..............  Attainment/Unclassifiable.
Jasper County..............................  ..............  Attainment/Unclassifiable.
Kershaw County.............................  ..............  Attainment/Unclassifiable.
Lancaster County...........................  ..............  Attainment/Unclassifiable.
Laurens County.............................  ..............  Attainment/Unclassifiable.
Lee County.................................  ..............  Attainment/Unclassifiable.
Lexington County...........................  ..............  Attainment/Unclassifiable.
Marion County..............................  ..............  Attainment/Unclassifiable.
Marlboro County............................  ..............  Attainment/Unclassifiable.
McCormick County...........................  ..............  Attainment/Unclassifiable.
Newberry County............................  ..............  Attainment/Unclassifiable.
Oconee County..............................  ..............  Attainment/Unclassifiable.
Orangeburg County..........................  ..............  Attainment/Unclassifiable.
Pickens County.............................  ..............  Attainment/Unclassifiable.
Richland County............................  ..............  Attainment/Unclassifiable.
Saluda County..............................  ..............  Attainment/Unclassifiable.
Spartanburg County.........................  ..............  Attainment/Unclassifiable.
Sumter County..............................  ..............  Attainment/Unclassifiable.
Union County...............................  ..............  Attainment/Unclassifiable.
Williamsburg County........................  ..............  Attainment/Unclassifiable.
York County................................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
43. Section 81.342 is amended by revising the table entitled ``South 
Dakota--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.342  South Dakota.

* * * * *

                                South Dakota--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Statewide:.................................  ..............  Attainment/Unclassifiable.

[[Page 1157]]

 
    Aurora County
    Beadle County
    Bennett County
    Bon Homme County
    Brookings County
    Brown County
    Brule County
    Buffalo County
    Butte County
    Campbell County
    Charles Mix County
    Clark County
    Clay County
    Codington County
    Corson County
    Custer County
    Davison County
    Day County
    Deuel County
    Dewey County
    Douglas County
    Edmunds County
    Fall River County
    Faulk County
    Grant County...........................         9/12/16  Attainment/Unclassifiable.
    Gregory County
    Haakon County
    Hamlin County
    Hand County
    Hanson County
    Harding County
    Hughes County
    Hutchinson County
    Hyde County
    Jackson County
    Jerauld County
    Jones County
    Kingsbury County
    Lake County
    Lawrence County
    Lincoln County
    Lyman County
    McCook County
    McPherson County
    Marshall County
    Meade County
    Mellette County
    Miner County
    Minnehaha County
    Moody County
    Oglala Lakota County
    Pennington County
    Perkins County
    Potter County
    Roberts County
    Sanborn County
    Spink County
    Stanley County
    Sully County
    Todd County
    Tripp County
    Turner County
    Union County
    Walworth County
    Yankton County
    Ziebach County
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.


[[Page 1158]]

* * * * *

0
44. Section 81.343 is amended by revising the table entitled 
``Tennessee--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.343   Tennessee.

* * * * *

                                 Tennessee--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
              Designated area               --------------------------------------------------------------------
                                                Date \1\                             Type
----------------------------------------------------------------------------------------------------------------
Sullivan County, TN \2\....................         10/4/13  Nonattainment.
    Sullivan County (part)
        That portion of Sullivan County
         encompassing a circle having its
         center at the B-253 power house
         coordinates 36.5186 N; 82.5350 W
         and having a 3-kilometer radius
Sumner County, TN \2\......................         9/12/16  Unclassifiable.
    Sumner County
Rest of State: \3\
    Anderson County........................  ..............  Attainment/Unclassifiable.
    Bedford County.........................  ..............  Attainment/Unclassifiable.
    Benton County..........................  ..............  Attainment/Unclassifiable.
    Bledsoe County.........................  ..............  Attainment/Unclassifiable.
    Blount County..........................  ..............  Attainment/Unclassifiable.
    Bradley County.........................  ..............  Attainment/Unclassifiable.
    Campbell County........................  ..............  Attainment/Unclassifiable.
    Cannon County..........................  ..............  Attainment/Unclassifiable.
    Carroll County.........................  ..............  Attainment/Unclassifiable.
    Carter County..........................  ..............  Attainment/Unclassifiable.
    Cheatham County........................  ..............  Attainment/Unclassifiable.
    Chester County.........................  ..............  Attainment/Unclassifiable.
    Claiborne County.......................  ..............  Attainment/Unclassifiable.
    Clay County............................  ..............  Attainment/Unclassifiable.
    Cocke County...........................  ..............  Attainment/Unclassifiable.
    Coffee County..........................  ..............  Attainment/Unclassifiable.
    Crockett County........................  ..............  Attainment/Unclassifiable.
    Cumberland County......................  ..............  Attainment/Unclassifiable.
    Davidson County........................  ..............  Attainment/Unclassifiable.
    Decatur County.........................  ..............  Attainment/Unclassifiable.
    DeKalb County..........................  ..............  Attainment/Unclassifiable.
    Dickson County.........................  ..............  Attainment/Unclassifiable.
    Dyer County............................  ..............  Attainment/Unclassifiable.
    Fayette County.........................  ..............  Attainment/Unclassifiable.
    Fentress County........................  ..............  Attainment/Unclassifiable.
    Franklin County........................  ..............  Attainment/Unclassifiable.
    Gibson County..........................  ..............  Attainment/Unclassifiable.
    Giles County...........................  ..............  Attainment/Unclassifiable.
    Grainger County........................  ..............  Attainment/Unclassifiable.
    Greene County..........................  ..............  Attainment/Unclassifiable.
    Grundy County..........................  ..............  Attainment/Unclassifiable.
    Hamblen County.........................  ..............  Attainment/Unclassifiable.
    Hamilton County........................  ..............  Attainment/Unclassifiable.
    Hancock County.........................  ..............  Attainment/Unclassifiable.
    Hardeman County........................  ..............  Attainment/Unclassifiable.
    Hardin County..........................  ..............  Attainment/Unclassifiable.
    Hawkins County.........................  ..............  Attainment/Unclassifiable.
    Haywood County.........................  ..............  Attainment/Unclassifiable.
    Henderson County.......................  ..............  Attainment/Unclassifiable.
    Henry County...........................  ..............  Attainment/Unclassifiable.
    Hickman County.........................  ..............  Attainment/Unclassifiable.
    Houston County.........................  ..............  Attainment/Unclassifiable.
    Humphreys County.......................  ..............  Attainment/Unclassifiable.
    Jackson County.........................  ..............  Attainment/Unclassifiable.
    Jefferson County.......................  ..............  Attainment/Unclassifiable.
    Johnson County.........................  ..............  Attainment/Unclassifiable.
    Knox County............................  ..............  Attainment/Unclassifiable.
    Lake County............................  ..............  Attainment/Unclassifiable.
    Lauderdale County......................  ..............  Attainment/Unclassifiable.
    Lawrence County........................  ..............  Attainment/Unclassifiable.
    Lewis County...........................  ..............  Attainment/Unclassifiable.
    Lincoln County.........................  ..............  Attainment/Unclassifiable.
    Loudon County..........................  ..............  Attainment/Unclassifiable.
    Macon County...........................  ..............  Attainment/Unclassifiable.
    Madison County.........................  ..............  Attainment/Unclassifiable.
    Marion County..........................  ..............  Attainment/Unclassifiable.
    Marshall County........................  ..............  Attainment/Unclassifiable.
    Maury County...........................  ..............  Attainment/Unclassifiable.
    McMinn County..........................  ..............  Attainment/Unclassifiable.

[[Page 1159]]

 
    McNairy County.........................  ..............  Attainment/Unclassifiable.
    Meigs County...........................  ..............  Attainment/Unclassifiable.
    Monroe County..........................  ..............  Attainment/Unclassifiable.
    Montgomery County......................  ..............  Attainment/Unclassifiable.
    Moore County...........................  ..............  Attainment/Unclassifiable.
    Morgan County..........................  ..............  Attainment/Unclassifiable.
    Obion County...........................  ..............  Attainment/Unclassifiable.
    Overton County.........................  ..............  Attainment/Unclassifiable.
    Perry County...........................  ..............  Attainment/Unclassifiable.
    Pickett County.........................  ..............  Attainment/Unclassifiable.
    Polk County............................  ..............  Attainment/Unclassifiable.
    Putnam County..........................  ..............  Attainment/Unclassifiable.
    Rhea County............................  ..............  Attainment/Unclassifiable.
    Roane County...........................  ..............  Attainment/Unclassifiable.
    Robertson County.......................  ..............  Attainment/Unclassifiable.
    Rutherford County......................  ..............  Attainment/Unclassifiable.
    Scott County...........................  ..............  Attainment/Unclassifiable.
    Sequatchie County......................  ..............  Attainment/Unclassifiable.
    Sevier County..........................  ..............  Attainment/Unclassifiable.
    Shelby County..........................  ..............  Attainment/Unclassifiable.
    Smith County...........................  ..............  Attainment/Unclassifiable.
    Stewart County.........................  ..............  Attainment/Unclassifiable.
    Sullivan County (part) (remainder).....  ..............  Attainment/Unclassifiable.
    Tipton County..........................  ..............  Attainment/Unclassifiable.
    Trousdale County.......................  ..............  Attainment/Unclassifiable.
    Unicoi County..........................  ..............  Attainment/Unclassifiable.
    Union County...........................  ..............  Attainment/Unclassifiable.
    Van Buren County.......................  ..............  Attainment/Unclassifiable.
    Warren County..........................  ..............  Attainment/Unclassifiable.
    Washington County......................  ..............  Attainment/Unclassifiable.
    Wayne County...........................  ..............  Attainment/Unclassifiable.
    Weakley County.........................  ..............  Attainment/Unclassifiable.
    White County...........................  ..............  Attainment/Unclassifiable.
    Williamson County......................  ..............  Attainment/Unclassifiable.
    Wilson County..........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ This date is April 9, 2018, unless otherwise noted.
\2\ Excludes Indian country located in each area, if any, unless otherwise specified.
\3\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.

* * * * *

0
45. Section 81.344 is amended by revising the table entitled ``Texas--
2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.344   Texas.

* * * * *

                                   Texas--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
          Designated area \1\ \3\           --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Freestone and Anderson Counties, TX
    Freestone County (part) and Anderson            1/12/17  Nonattainment.
     County (part).
        Those portions of Freestone and      ..............  ...................................................
         Anderson Counties encompassed by
         the rectangle with the vertices
         using Universal Traverse Mercator
         (UTM) coordinates in UTM zone 14
         with datum NAD83 as follows: (1)
         Vertices--UTM Easting (m)
         766752.69, UTM Northing (m)
         3536333.0, (2) vertices--UTM
         Easting (m) 784752.69, UTM
         Northing (m) 3536333.0, (3)
         vertices--UTM Easting (m)
         784752.69, UTM Northing (m)
         3512333.0, (4) vertices--UTM
         Easting (m) 766752.69, UTM
         Northing (m) 3512333.0
Rusk and Panola Counties, TX                 ..............  ...................................................
    Rusk County (part) and Panola County            1/12/17  Nonattainment.
     (part).

[[Page 1160]]

 
        Those portions of Rusk and Panola    ..............  ...................................................
         Counties encompassed by the
         rectangle with the vertices using
         Universal Traverse Mercator (UTM)
         coordinates in UTM zone 15 with
         datum NAD83 as follows: (1)
         Vertices--UTM Easting (m)
         340067.31, UTM Northing (m)
         3575814.75 (2) vertices--UTM
         Easting (m) 356767.31, UTM
         Northing (m) 3575814.75 (3)
         vertices--UTM Easting (m)
         356767.31, UTM Northing (m)
         3564314.75 (4) vertices--UTM
         Easting (m) 340067.31, UTM
         Northing (m) 3564314.75
Titus County (part)........................         1/12/17  Nonattainment.
        That portion of Titus County         ..............  ...................................................
         encompassed by the rectangle with
         the vertices using Universal
         Traverse Mercator (UTM)
         coordinates in UTM zone 15 with
         datum NAD83 as follows: (1)
         Vertices--UTM Easting (m)
         304329.030, UTM Northing (m)
         3666971.0, (2) vertices--UTM
         Easting (m) 311629.030, UTM
         Northing (m) 3666971.0, (3)
         vertices--UTM Easting (m)
         311629.03, UTM Northing (m)
         3661870.5, (4) vertices--UTM
         Easting (m) 304329.03, UTM
         Northing (m) 3661870.5
Milam County, TX...........................         1/12/17  Unclassifiable.
Potter County, TX..........................         9/12/16  Unclassifiable.
Anderson County (part) (remainder).........  ..............  Attainment/Unclassifiable.
Andrews County.............................  ..............  Attainment/Unclassifiable.
Angelina County............................  ..............  Attainment/Unclassifiable.
Aransas County.............................  ..............  Attainment/Unclassifiable.
Archer County..............................  ..............  Attainment/Unclassifiable.
Armstrong County...........................  ..............  Attainment/Unclassifiable.
Atascosa County............................         9/12/16  Attainment/Unclassifiable.
Austin County..............................  ..............  Attainment/Unclassifiable.
Bailey County..............................  ..............  Attainment/Unclassifiable.
Bandera County.............................  ..............  Attainment/Unclassifiable.
Bastrop County.............................  ..............  Attainment/Unclassifiable.
Baylor County..............................  ..............  Attainment/Unclassifiable.
Bee County.................................  ..............  Attainment/Unclassifiable.
Bell County................................  ..............  Attainment/Unclassifiable.
Blanco County..............................  ..............  Attainment/Unclassifiable.
Borden County..............................  ..............  Attainment/Unclassifiable.
Bosque County..............................  ..............  Attainment/Unclassifiable.
Bowie County...............................  ..............  Attainment/Unclassifiable.
Brazoria County............................  ..............  Attainment/Unclassifiable.
Brazos County..............................  ..............  Attainment/Unclassifiable.
Brewster County............................  ..............  Attainment/Unclassifiable.
Briscoe County.............................  ..............  Attainment/Unclassifiable.
Brooks County..............................  ..............  Attainment/Unclassifiable.
Brown County...............................  ..............  Attainment/Unclassifiable.
Burleson County............................  ..............  Attainment/Unclassifiable.
Burnet County..............................  ..............  Attainment/Unclassifiable.
Caldwell County............................  ..............  Attainment/Unclassifiable.
Calhoun County.............................  ..............  Attainment/Unclassifiable.
Callahan County............................  ..............  Attainment/Unclassifiable.
Cameron County.............................  ..............  Attainment/Unclassifiable.
Camp County................................  ..............  Attainment/Unclassifiable.
Carson County..............................  ..............  Attainment/Unclassifiable.
Cass County................................  ..............  Attainment/Unclassifiable.
Castro County..............................  ..............  Attainment/Unclassifiable.
Chambers County............................  ..............  Attainment/Unclassifiable.
Cherokee County............................  ..............  Attainment/Unclassifiable.
Childress County...........................  ..............  Attainment/Unclassifiable.
Clay County................................  ..............  Attainment/Unclassifiable.
Cochran County.............................  ..............  Attainment/Unclassifiable.
Coke County................................  ..............  Attainment/Unclassifiable.
Coleman County.............................  ..............  Attainment/Unclassifiable.
Collin County..............................  ..............  Attainment/Unclassifiable.
Collingsworth County.......................  ..............  Attainment/Unclassifiable.
Colorado County............................  ..............  Attainment/Unclassifiable.
Comal County...............................  ..............  Attainment/Unclassifiable.
Comanche County............................  ..............  Attainment/Unclassifiable.
Concho County..............................  ..............  Attainment/Unclassifiable.
Cooke County...............................  ..............  Attainment/Unclassifiable.
Coryell County.............................  ..............  Attainment/Unclassifiable.
Cottle County..............................  ..............  Attainment/Unclassifiable.
Crane County...............................  ..............  Attainment/Unclassifiable.
Crockett County............................  ..............  Attainment/Unclassifiable.
Crosby County..............................  ..............  Attainment/Unclassifiable.

[[Page 1161]]

 
Culberson County...........................  ..............  Attainment/Unclassifiable.
Dallam County..............................  ..............  Attainment/Unclassifiable.
Dallas County..............................  ..............  Attainment/Unclassifiable.
Dawson County..............................  ..............  Attainment/Unclassifiable.
Deaf Smith County..........................  ..............  Attainment/Unclassifiable.
Delta County...............................  ..............  Attainment/Unclassifiable.
Denton County..............................  ..............  Attainment/Unclassifiable.
DeWitt County..............................  ..............  Attainment/Unclassifiable.
Dickens County.............................  ..............  Attainment/Unclassifiable.
Dimmit County..............................  ..............  Attainment/Unclassifiable.
Donley County..............................  ..............  Attainment/Unclassifiable.
Duval County...............................  ..............  Attainment/Unclassifiable.
Eastland County............................  ..............  Attainment/Unclassifiable.
Ector County...............................  ..............  Attainment/Unclassifiable.
Edwards County.............................  ..............  Attainment/Unclassifiable.
El Paso County.............................  ..............  Attainment/Unclassifiable.
Ellis County...............................  ..............  Attainment/Unclassifiable.
Erath County...............................  ..............  Attainment/Unclassifiable.
Falls County...............................  ..............  Attainment/Unclassifiable.
Fannin County..............................  ..............  Attainment/Unclassifiable.
Fayette County.............................  ..............  Attainment/Unclassifiable.
Fisher County..............................  ..............  Attainment/Unclassifiable.
Floyd County...............................  ..............  Attainment/Unclassifiable.
Foard County...............................  ..............  Attainment/Unclassifiable.
Fort Bend County...........................         9/12/16  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
Freestone County (part) (remainder)........  ..............  Attainment/Unclassifiable.
Frio County................................  ..............  Attainment/Unclassifiable.
Gaines County..............................  ..............  Attainment/Unclassifiable.
Galveston County...........................  ..............  Attainment/Unclassifiable.
Garza County...............................  ..............  Attainment/Unclassifiable.
Gillespie County...........................  ..............  Attainment/Unclassifiable.
Glasscock County...........................  ..............  Attainment/Unclassifiable.
Goliad County..............................         9/12/16  Attainment/Unclassifiable.
Gonzales County............................  ..............  Attainment/Unclassifiable.
Gray County................................  ..............  Attainment/Unclassifiable.
Grayson County.............................  ..............  Attainment/Unclassifiable.
Gregg County...............................  ..............  Attainment/Unclassifiable.
Grimes County..............................  ..............  Attainment/Unclassifiable.
Guadalupe County...........................  ..............  Attainment/Unclassifiable.
Hale County................................  ..............  Attainment/Unclassifiable.
Hall County................................  ..............  Attainment/Unclassifiable.
Hamilton County............................  ..............  Attainment/Unclassifiable.
Hansford County............................  ..............  Attainment/Unclassifiable.
Hardeman County............................  ..............  Attainment/Unclassifiable.
Hardin County..............................  ..............  Attainment/Unclassifiable.
Harris County..............................  ..............  Attainment/Unclassifiable.
Hartley County.............................  ..............  Attainment/Unclassifiable.
Haskell County.............................  ..............  Attainment/Unclassifiable.
Hays County................................  ..............  Attainment/Unclassifiable.
Hemphill County............................  ..............  Attainment/Unclassifiable.
Henderson County...........................  ..............  Attainment/Unclassifiable.
Hidalgo County.............................  ..............  Attainment/Unclassifiable.
Hill County................................  ..............  Attainment/Unclassifiable.
Hockley County.............................  ..............  Attainment/Unclassifiable.
Hood County................................  ..............  Attainment/Unclassifiable.
Hopkins County.............................  ..............  Attainment/Unclassifiable.
Houston County.............................  ..............  Attainment/Unclassifiable.
Hudspeth County............................  ..............  Attainment/Unclassifiable.
Hunt County................................  ..............  Attainment/Unclassifiable.
Irion County...............................  ..............  Attainment/Unclassifiable.
Jack County................................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jasper County..............................  ..............  Attainment/Unclassifiable.
Jeff Davis County..........................  ..............  Attainment/Unclassifiable.
Jim Hogg County............................  ..............  Attainment/Unclassifiable.
Jim Wells County...........................  ..............  Attainment/Unclassifiable.
Johnson County.............................  ..............  Attainment/Unclassifiable.
Jones County...............................  ..............  Attainment/Unclassifiable.
Karnes County..............................  ..............  Attainment/Unclassifiable.

[[Page 1162]]

 
Kaufman County.............................  ..............  Attainment/Unclassifiable.
Kendall County.............................  ..............  Attainment/Unclassifiable.
Kenedy County..............................  ..............  Attainment/Unclassifiable.
Kent County................................  ..............  Attainment/Unclassifiable.
Kerr County................................  ..............  Attainment/Unclassifiable.
Kimble County..............................  ..............  Attainment/Unclassifiable.
King County................................  ..............  Attainment/Unclassifiable.
Kinney County..............................  ..............  Attainment/Unclassifiable.
Kleberg County.............................  ..............  Attainment/Unclassifiable.
Knox County................................  ..............  Attainment/Unclassifiable.
Lamar County...............................  ..............  Attainment/Unclassifiable.
Lamb County................................         9/12/16  Attainment/Unclassifiable.
Lampasas County............................  ..............  Attainment/Unclassifiable.
La Salle County............................  ..............  Attainment/Unclassifiable.
Lavaca County..............................  ..............  Attainment/Unclassifiable.
Lee County.................................  ..............  Attainment/Unclassifiable.
Leon County................................  ..............  Attainment/Unclassifiable.
Liberty County.............................  ..............  Attainment/Unclassifiable.
Limestone County...........................         9/12/16  Attainment/Unclassifiable.
Lipscomb County............................  ..............  Attainment/Unclassifiable.
Live Oak County............................  ..............  Attainment/Unclassifiable.
Llano County...............................  ..............  Attainment/Unclassifiable.
Loving County..............................  ..............  Attainment/Unclassifiable.
Lubbock County.............................  ..............  Attainment/Unclassifiable.
Lynn County................................  ..............  Attainment/Unclassifiable.
McCulloch County...........................  ..............  Attainment/Unclassifiable.
McLennan County............................         9/12/16  Attainment/Unclassifiable.
McMullen County............................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Marion County..............................  ..............  Attainment/Unclassifiable.
Martin County..............................  ..............  Attainment/Unclassifiable.
Mason County...............................  ..............  Attainment/Unclassifiable.
Matagorda County...........................  ..............  Attainment/Unclassifiable.
Maverick County............................  ..............  Attainment/Unclassifiable.
Medina County..............................  ..............  Attainment/Unclassifiable.
Menard County..............................  ..............  Attainment/Unclassifiable.
Midland County.............................  ..............  Attainment/Unclassifiable.
Mills County...............................  ..............  Attainment/Unclassifiable.
Mitchell County............................  ..............  Attainment/Unclassifiable.
Montague County............................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Moore County...............................  ..............  Attainment/Unclassifiable.
Morris County..............................  ..............  Attainment/Unclassifiable.
Motley County..............................  ..............  Attainment/Unclassifiable.
Nacogdoches County.........................  ..............  Attainment/Unclassifiable.
Newton County..............................  ..............  Attainment/Unclassifiable.
Nolan County...............................  ..............  Attainment/Unclassifiable.
Nueces County..............................  ..............  Attainment/Unclassifiable.
Ochiltree County...........................  ..............  Attainment/Unclassifiable.
Oldham County..............................  ..............  Attainment/Unclassifiable.
Panola County (part) (remainder)...........  ..............  Attainment/Unclassifiable.
Palo Pinto County..........................  ..............  Attainment/Unclassifiable.
Parker County..............................  ..............  Attainment/Unclassifiable.
Parmer County..............................  ..............  Attainment/Unclassifiable.
Pecos County...............................  ..............  Attainment/Unclassifiable.
Polk County................................  ..............  Attainment/Unclassifiable.
Presidio County............................  ..............  Attainment/Unclassifiable.
Rains County...............................  ..............  Attainment/Unclassifiable.
Randall County.............................  ..............  Attainment/Unclassifiable.
Reagan County..............................  ..............  Attainment/Unclassifiable.
Real County................................  ..............  Attainment/Unclassifiable.
Red River County...........................  ..............  Attainment/Unclassifiable.
Reeves County..............................  ..............  Attainment/Unclassifiable.
Refugio County.............................  ..............  Attainment/Unclassifiable.
Roberts County.............................  ..............  Attainment/Unclassifiable.
Robertson County...........................         9/12/16  Attainment/Unclassifiable.
Rockwall County............................  ..............  Attainment/Unclassifiable.
Runnels County.............................  ..............  Attainment/Unclassifiable.
Rusk County (part) (remainder).............  ..............  Attainment/Unclassifiable.
Sabine County..............................  ..............  Attainment/Unclassifiable.

[[Page 1163]]

 
San Augustine County.......................  ..............  Attainment/Unclassifiable.
San Jacinto................................  ..............  Attainment/Unclassifiable.
San Patricio County........................  ..............  Attainment/Unclassifiable.
San Saba County............................  ..............  Attainment/Unclassifiable.
Schleicher County..........................  ..............  Attainment/Unclassifiable.
Scurry County..............................  ..............  Attainment/Unclassifiable.
Shackelford County.........................  ..............  Attainment/Unclassifiable.
Shelby County..............................  ..............  Attainment/Unclassifiable.
Sherman County.............................  ..............  Attainment/Unclassifiable.
Smith County...............................  ..............  Attainment/Unclassifiable.
Somervell County...........................  ..............  Attainment/Unclassifiable.
Starr County...............................  ..............  Attainment/Unclassifiable.
Stephens County............................  ..............  Attainment/Unclassifiable.
Sterling County............................  ..............  Attainment/Unclassifiable.
Stonewall County...........................  ..............  Attainment/Unclassifiable.
Sutton County..............................  ..............  Attainment/Unclassifiable.
Swisher County.............................  ..............  Attainment/Unclassifiable.
Tarrant County.............................  ..............  Attainment/Unclassifiable.
Taylor County..............................  ..............  Attainment/Unclassifiable.
Terrell County.............................  ..............  Attainment/Unclassifiable.
Terry County...............................  ..............  Attainment/Unclassifiable.
Throckmorton County........................  ..............  Attainment/Unclassifiable.
Titus County (part)........................  ..............  Attainment/Unclassifiable.
Tom Green County...........................  ..............  Attainment/Unclassifiable.
Travis County..............................  ..............  Attainment/Unclassifiable.
Trinity County.............................  ..............  Attainment/Unclassifiable.
Tyler County...............................  ..............  Attainment/Unclassifiable.
Upshur County..............................  ..............  Attainment/Unclassifiable.
Upton County...............................  ..............  Attainment/Unclassifiable.
Uvalde County..............................  ..............  Attainment/Unclassifiable.
Val Verde County...........................  ..............  Attainment/Unclassifiable.
Van Zandt County...........................  ..............  Attainment/Unclassifiable.
Victoria County............................  ..............  Attainment/Unclassifiable.
Walker County..............................  ..............  Attainment/Unclassifiable.
Waller County..............................  ..............  Attainment/Unclassifiable.
Ward County................................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Webb County................................  ..............  Attainment/Unclassifiable.
Wharton County.............................  ..............  Attainment/Unclassifiable.
Wheeler County.............................  ..............  Attainment/Unclassifiable.
Wichita County.............................  ..............  Attainment/Unclassifiable.
Wilbarger County...........................  ..............  Attainment/Unclassifiable.
Willacy County.............................  ..............  Attainment/Unclassifiable.
Williamson County..........................  ..............  Attainment/Unclassifiable.
Wilson County..............................  ..............  Attainment/Unclassifiable.
Winkler County.............................  ..............  Attainment/Unclassifiable.
Wise County................................  ..............  Attainment/Unclassifiable.
Wood County................................  ..............  Attainment/Unclassifiable.
Yoakum County..............................  ..............  Attainment/Unclassifiable.
Young County...............................  ..............  Attainment/Unclassifiable.
Zapata County..............................  ..............  Attainment/Unclassifiable.
Zavala County..............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Bexar, Harrison, Howard, Hutchinson, Jefferson, Navarro, and Orange Counties and the remaining portion of
  Titus County will be designated by December 31, 2020.

* * * * *

0
46. Section 81.345 is amended by adding a table titled ``Utah--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table ``Utah--1971 
Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.345   Utah.

* * * * *

[[Page 1164]]



                                    Utah--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                          Designation
             Designated area \1\              ------------------------------------------------------------------
                                                  Date \2\                            Type
----------------------------------------------------------------------------------------------------------------
Statewide:
    Beaver County............................  ..............  Attainment/Unclassifiable.
    Box Elder County.........................  ..............  Attainment/Unclassifiable.
    Cache County.............................  ..............  Attainment/Unclassifiable.
    Carbon County............................  ..............  Attainment/Unclassifiable.
    Daggett County...........................  ..............  Attainment/Unclassifiable.
    Davis County.............................  ..............  Attainment/Unclassifiable.
    Duchesne County..........................  ..............  Attainment/Unclassifiable.
    Emery County.............................  ..............  Attainment/Unclassifiable.
    Garfield County..........................  ..............  Attainment/Unclassifiable.
    Grand County.............................  ..............  Attainment/Unclassifiable.
    Iron County..............................  ..............  Attainment/Unclassifiable.
    Juab County..............................  ..............  Attainment/Unclassifiable.
    Kane County..............................  ..............  Attainment/Unclassifiable.
    Millard County...........................  ..............  Attainment/Unclassifiable.
    Morgan County............................  ..............  Attainment/Unclassifiable.
    Piute County.............................  ..............  Attainment/Unclassifiable.
    Rich County..............................  ..............  Attainment/Unclassifiable.
    Salt Lake County.........................  ..............  Attainment/Unclassifiable.
    San Juan County..........................  ..............  Attainment/Unclassifiable.
    Sanpete County...........................  ..............  Attainment/Unclassifiable.
    Sevier County............................  ..............  Attainment/Unclassifiable.
    Summit County............................  ..............  Attainment/Unclassifiable.
    Tooele County............................  ..............  Attainment/Unclassifiable.
    Uintah County............................  ..............  Attainment/Unclassifiable.
    Utah County..............................  ..............  Attainment/Unclassifiable.
    Wasatch County...........................  ..............  Attainment/Unclassifiable.
    Washington County........................  ..............  Attainment/Unclassifiable.
    Wayne County.............................  ..............  Attainment/Unclassifiable.
    Weber County.............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country. The lands of the
  Navajo Nation, including those lands located geographically within Utah, are excluded, as they are separately
  designated under Section 81.303.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
47. Section 81.346 is amended by adding a table titled ``Vermont--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table ``Vermont--1971 
Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.346  Vermont.

* * * * *

                                  Vermont--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
Statewide:
    Addison................................  ..............  Attainment/Unclassifiable.
    Bennington.............................  ..............  Attainment/Unclassifiable.
    Caledonia..............................  ..............  Attainment/Unclassifiable.
    Chittenden.............................  ..............  Attainment/Unclassifiable.
    Essex..................................  ..............  Attainment/Unclassifiable.
    Franklin...............................  ..............  Attainment/Unclassifiable.
    Grand Isle.............................  ..............  Attainment/Unclassifiable.
    Lamoille...............................  ..............  Attainment/Unclassifiable.
    Orange.................................  ..............  Attainment/Unclassifiable.
    Orleans................................  ..............  Attainment/Unclassifiable.
    Rutland................................  ..............  Attainment/Unclassifiable.
    Washington.............................  ..............  Attainment/Unclassifiable.
    Windham................................  ..............  Attainment/Unclassifiable.
    Windsor................................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.


[[Page 1165]]

* * * * *

0
48. Section 81.347 is amended by adding a table titled ``Virginia--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table ``Virginia--1971 
Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.347  Virginia.

* * * * *

                                  Virginia--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area 1 3             --------------------------------------------------------------------
                                                 Date 2                              Type
----------------------------------------------------------------------------------------------------------------
Buchanan County............................  ..............  Unclassifiable.
Accomack County............................  ..............  Attainment/Unclassifiable.
Albemarle County...........................  ..............  Attainment/Unclassifiable.
Amelia County..............................  ..............  Attainment/Unclassifiable.
Amherst County.............................  ..............  Attainment/Unclassifiable.
Appomattox County..........................  ..............  Attainment/Unclassifiable.
Arlington County...........................  ..............  Attainment/Unclassifiable.
Augusta County.............................  ..............  Attainment/Unclassifiable.
Bath County................................  ..............  Attainment/Unclassifiable.
Bedford County.............................  ..............  Attainment/Unclassifiable.
Bland County...............................  ..............  Attainment/Unclassifiable.
Brunswick County...........................  ..............  Attainment/Unclassifiable.
Buckingham County..........................  ..............  Attainment/Unclassifiable.
Campbell County............................  ..............  Attainment/Unclassifiable.
Caroline County............................  ..............  Attainment/Unclassifiable.
Carroll County.............................  ..............  Attainment/Unclassifiable.
Charles City County........................  ..............  Attainment/Unclassifiable.
Charlotte County...........................  ..............  Attainment/Unclassifiable.
Chesterfield County........................  ..............  Attainment/Unclassifiable.
City of Alexandria.........................  ..............  Attainment/Unclassifiable.
City of Bedford............................  ..............  Attainment/Unclassifiable.
City of Bristol............................  ..............  Attainment/Unclassifiable.
City of Buena Vista........................  ..............  Attainment/Unclassifiable.
City of Charlottesville....................  ..............  Attainment/Unclassifiable.
City of Chesapeake.........................  ..............  Attainment/Unclassifiable.
City of Colonial Heights...................  ..............  Attainment/Unclassifiable.
City of Danville...........................  ..............  Attainment/Unclassifiable.
City of Emporia............................  ..............  Attainment/Unclassifiable.
City of Fairfax............................  ..............  Attainment/Unclassifiable.
City of Falls Church.......................  ..............  Attainment/Unclassifiable.
City of Franklin...........................  ..............  Attainment/Unclassifiable.
City of Fredericksburg.....................  ..............  Attainment/Unclassifiable.
City of Galax..............................  ..............  Attainment/Unclassifiable.
City of Hampton............................  ..............  Attainment/Unclassifiable.
City of Harrisonburg.......................  ..............  Attainment/Unclassifiable.
City of Hopewell...........................  ..............  Attainment/Unclassifiable.
City of Lexington..........................  ..............  Attainment/Unclassifiable.
City of Lynchburg..........................  ..............  Attainment/Unclassifiable.
City of Manassas...........................  ..............  Attainment/Unclassifiable.
City of Manassas Park......................  ..............  Attainment/Unclassifiable.
City of Martinsville.......................  ..............  Attainment/Unclassifiable.
City of Newport News.......................  ..............  Attainment/Unclassifiable.
City of Norfolk............................  ..............  Attainment/Unclassifiable.
City of Norton.............................  ..............  Attainment/Unclassifiable.
City of Petersburg.........................  ..............  Attainment/Unclassifiable.
City of Poquoson...........................  ..............  Attainment/Unclassifiable.
City of Portsmouth.........................  ..............  Attainment/Unclassifiable.
City of Radford............................  ..............  Attainment/Unclassifiable.
City of Richmond...........................  ..............  Attainment/Unclassifiable.
City of Roanoke............................  ..............  Attainment/Unclassifiable.
City of Salem..............................  ..............  Attainment/Unclassifiable.
City of Staunton...........................  ..............  Attainment/Unclassifiable.
City of Suffolk............................  ..............  Attainment/Unclassifiable.
City of Virginia Beach.....................  ..............  Attainment/Unclassifiable.
City of Waynesboro.........................  ..............  Attainment/Unclassifiable.
City of Williamsburg.......................  ..............  Attainment/Unclassifiable.
City of Winchester.........................  ..............  Attainment/Unclassifiable.
Clarke County..............................  ..............  Attainment/Unclassifiable.
Craig County...............................  ..............  Attainment/Unclassifiable.
Culpeper County............................  ..............  Attainment/Unclassifiable.
Cumberland County..........................  ..............  Attainment/Unclassifiable.
Dickenson County...........................  ..............  Attainment/Unclassifiable.
Dinwiddie County...........................  ..............  Attainment/Unclassifiable.
Essex County...............................  ..............  Attainment/Unclassifiable.
Fairfax County.............................  ..............  Attainment/Unclassifiable.

[[Page 1166]]

 
Fauquier County............................  ..............  Attainment/Unclassifiable.
Floyd County...............................  ..............  Attainment/Unclassifiable.
Fluvanna County............................  ..............  Attainment/Unclassifiable.
Franklin County............................  ..............  Attainment/Unclassifiable.
Frederick County...........................  ..............  Attainment/Unclassifiable.
Gloucester County..........................  ..............  Attainment/Unclassifiable.
Goochland County...........................  ..............  Attainment/Unclassifiable.
Grayson County.............................  ..............  Attainment/Unclassifiable.
Greene County..............................  ..............  Attainment/Unclassifiable.
Greensville County.........................  ..............  Attainment/Unclassifiable.
Halifax County.............................  ..............  Attainment/Unclassifiable.
Hanover County.............................  ..............  Attainment/Unclassifiable.
Henrico County.............................  ..............  Attainment/Unclassifiable.
Henry County...............................  ..............  Attainment/Unclassifiable.
Highland County............................  ..............  Attainment/Unclassifiable.
Isle of Wight County.......................  ..............  Attainment/Unclassifiable.
James City County..........................  ..............  Attainment/Unclassifiable.
King and Queen County......................  ..............  Attainment/Unclassifiable.
King George County.........................  ..............  Attainment/Unclassifiable.
King William County........................  ..............  Attainment/Unclassifiable.
Lancaster County...........................  ..............  Attainment/Unclassifiable.
Lee County.................................  ..............  Attainment/Unclassifiable.
Loudoun County.............................  ..............  Attainment/Unclassifiable.
Louisa County..............................  ..............  Attainment/Unclassifiable.
Lunenburg County...........................  ..............  Attainment/Unclassifiable.
Madison County.............................  ..............  Attainment/Unclassifiable.
Mathews County.............................  ..............  Attainment/Unclassifiable.
Mecklenburg County.........................  ..............  Attainment/Unclassifiable.
Middlesex County...........................  ..............  Attainment/Unclassifiable.
Montgomery County..........................  ..............  Attainment/Unclassifiable.
Nelson County..............................  ..............  Attainment/Unclassifiable.
New Kent County............................  ..............  Attainment/Unclassifiable.
Northampton County.........................  ..............  Attainment/Unclassifiable.
Northumberland County......................  ..............  Attainment/Unclassifiable.
Nottoway County............................  ..............  Attainment/Unclassifiable.
Orange County..............................  ..............  Attainment/Unclassifiable.
Page County................................  ..............  Attainment/Unclassifiable.
Patrick County.............................  ..............  Attainment/Unclassifiable.
Pittsylvania County........................  ..............  Attainment/Unclassifiable.
Powhatan County............................  ..............  Attainment/Unclassifiable.
Prince Edward County.......................  ..............  Attainment/Unclassifiable.
Prince George County.......................  ..............  Attainment/Unclassifiable.
Prince William County......................  ..............  Attainment/Unclassifiable.
Pulaski County.............................  ..............  Attainment/Unclassifiable.
Rappahannock County........................  ..............  Attainment/Unclassifiable.
Richmond County............................  ..............  Attainment/Unclassifiable.
Roanoke County.............................  ..............  Attainment/Unclassifiable.
Rockbridge County..........................  ..............  Attainment/Unclassifiable.
Rockingham County..........................  ..............  Attainment/Unclassifiable.
Russell County.............................  ..............  Attainment/Unclassifiable.
Scott County...............................  ..............  Attainment/Unclassifiable.
Shenandoah County..........................  ..............  Attainment/Unclassifiable.
Smyth County...............................  ..............  Attainment/Unclassifiable.
Southampton County.........................  ..............  Attainment/Unclassifiable.
Spotsylvania County........................  ..............  Attainment/Unclassifiable.
Stafford County............................  ..............  Attainment/Unclassifiable.
Surry County...............................  ..............  Attainment/Unclassifiable.
Sussex County..............................  ..............  Attainment/Unclassifiable.
Tazewell County............................  ..............  Attainment/Unclassifiable.
Warren County..............................  ..............  Attainment/Unclassifiable.
Washington County..........................  ..............  Attainment/Unclassifiable.
Westmoreland County........................  ..............  Attainment/Unclassifiable.
Wise County................................  ..............  Attainment/Unclassifiable.
Wythe County...............................  ..............  Attainment/Unclassifiable.
York County................................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Alleghany, Botetourt, Covington City, and Giles Counties will be designated by December 31, 2020.


[[Page 1167]]

* * * * *

0
49. Section 81.348 is amended by adding a table titled ``Washington--
2010 Sulfur Dioxide NAAQS (Primary)'' following the table 
``Washington--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to 
read as follows:


Sec.  81.348   Washington.

* * * * *

                                 Washington--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
             Designated area 1              --------------------------------------------------------------------
                                                 Date 2                              Type
----------------------------------------------------------------------------------------------------------------
Lewis County...............................  ..............  Unclassifiable.
Thurston County............................  ..............  Unclassifiable.
Rest of State: \3\
    Adams..................................  ..............  Attainment/Unclassifiable.
    Asotin.................................  ..............  Attainment/Unclassifiable.
    Benton.................................  ..............  Attainment/Unclassifiable.
    Clallam................................  ..............  Attainment/Unclassifiable.
    Clark..................................  ..............  Attainment/Unclassifiable.
    Columbia...............................  ..............  Attainment/Unclassifiable.
    Cowlitz................................  ..............  Attainment/Unclassifiable.
    Ferry..................................  ..............  Attainment/Unclassifiable.
    Franklin...............................  ..............  Attainment/Unclassifiable.
    Garfield...............................  ..............  Attainment/Unclassifiable.
    Grant..................................  ..............  Attainment/Unclassifiable.
    Grays Harbor...........................  ..............  Attainment/Unclassifiable.
    Island.................................  ..............  Attainment/Unclassifiable.
    Jefferson..............................  ..............  Attainment/Unclassifiable.
    King...................................  ..............  Attainment/Unclassifiable.
    Kitsap.................................  ..............  Attainment/Unclassifiable.
    Kittitas...............................  ..............  Attainment/Unclassifiable.
    Klickitat..............................  ..............  Attainment/Unclassifiable.
    Lincoln................................  ..............  Attainment/Unclassifiable.
    Mason..................................  ..............  Attainment/Unclassifiable.
    Okanogan...............................  ..............  Attainment/Unclassifiable.
    Pacific................................  ..............  Attainment/Unclassifiable.
    Pend Oreille...........................  ..............  Attainment/Unclassifiable.
    Pierce.................................  ..............  Attainment/Unclassifiable.
    San Juan...............................  ..............  Attainment/Unclassifiable.
    Skagit.................................  ..............  Attainment/Unclassifiable.
    Skamania...............................  ..............  Attainment/Unclassifiable.
    Snohomish..............................  ..............  Attainment/Unclassifiable.
    Spokane................................  ..............  Attainment/Unclassifiable.
    Stevens................................  ..............  Attainment/Unclassifiable.
    Wahkiakum..............................  ..............  Attainment/Unclassifiable.
    Walla Walla............................  ..............  Attainment/Unclassifiable.
    Whitman................................  ..............  Attainment/Unclassifiable.
    Yakima.................................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Chelan, Douglas, and Whatcom Counties will be designated by December 31, 2020.

* * * * *

0
50. Section 81.349 is amended by revising the table entitled ``West 
Virginia--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.349  West Virginia.

* * * * *

                               West Virginia--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area 1 3             --------------------------------------------------------------------
                                                 Date 2                              Type
----------------------------------------------------------------------------------------------------------------
Steubenville, OH-WV
    Brooke County (part)...................         10/4/13  Nonattainment.
        Area bounded by the Cross Creek Tax
         District.
Marshall, WV
    Marshall County (part).................         10/4/13  Nonattainment.
        Area consisting of Clay Tax
         District, Franklin Tax District,
         and Washington Tax District.
Wood County................................  ..............  Unclassifiable.
Barbour County.............................  ..............  Attainment/Unclassifiable.
Berkeley County............................  ..............  Attainment/Unclassifiable.

[[Page 1168]]

 
Boone County...............................  ..............  Attainment/Unclassifiable.
Braxton County.............................  ..............  Attainment/Unclassifiable.
Brooke County (part).......................  ..............  Attainment/Unclassifiable.
        Area consisting of Buffalo Tax
         District.
Cabell County..............................  ..............  Attainment/Unclassifiable.
Calhoun County.............................  ..............  Attainment/Unclassifiable.
Clay County................................  ..............  Attainment/Unclassifiable.
Doddridge County...........................  ..............  Attainment/Unclassifiable.
Fayette County.............................  ..............  Attainment/Unclassifiable.
Gilmer County..............................  ..............  Attainment/Unclassifiable.
Grant County...............................  ..............  Attainment/Unclassifiable.
Greenbrier County..........................  ..............  Attainment/Unclassifiable.
Hampshire County...........................  ..............  Attainment/Unclassifiable.
Hancock County.............................  ..............  Attainment/Unclassifiable.
Hardy County...............................  ..............  Attainment/Unclassifiable.
Harrison County............................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Kanawha County.............................  ..............  Attainment/Unclassifiable.
Lewis County...............................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Logan County...............................  ..............  Attainment/Unclassifiable.
Marion County..............................  ..............  Attainment/Unclassifiable.
Marshall County (part).....................  ..............  Attainment/Unclassifiable.
        Area consisting of Cameron Tax
         District, Liberty Tax District,
         Meade Tax District, Sand Hill Tax
         District, Union Tax District, and
         Webster Tax District.
Mason County...............................  ..............  Attainment/Unclassifiable.
McDowell County............................  ..............  Attainment/Unclassifiable.
Mercer County..............................  ..............  Attainment/Unclassifiable.
Mingo County...............................  ..............  Attainment/Unclassifiable.
Monongalia County..........................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Morgan County..............................  ..............  Attainment/Unclassifiable.
Nicholas County............................  ..............  Attainment/Unclassifiable.
Ohio County................................  ..............  Attainment/Unclassifiable.
Pendleton County...........................  ..............  Attainment/Unclassifiable.
Pleasants County...........................  ..............  Attainment/Unclassifiable.
Pocahontas County..........................  ..............  Attainment/Unclassifiable.
Preston County.............................  ..............  Attainment/Unclassifiable.
Putnam County..............................  ..............  Attainment/Unclassifiable.
Raleigh County.............................  ..............  Attainment/Unclassifiable.
Randolph County............................  ..............  Attainment/Unclassifiable.
Ritchie County.............................  ..............  Attainment/Unclassifiable.
Roane County...............................  ..............  Attainment/Unclassifiable.
Summers County.............................  ..............  Attainment/Unclassifiable.
Taylor County..............................  ..............  Attainment/Unclassifiable.
Tucker County..............................  ..............  Attainment/Unclassifiable.
Tyler County...............................  ..............  Attainment/Unclassifiable.
Upshur County..............................  ..............  Attainment/Unclassifiable.
Wayne County...............................  ..............  Attainment/Unclassifiable.
Webster County.............................  ..............  Attainment/Unclassifiable.
Wetzel County..............................  ..............  Attainment/Unclassifiable.
Wirt County................................  ..............  Attainment/Unclassifiable.
Wyoming County.............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Mineral County will be designated by December 31, 2020.

* * * * *

0
51. Section 81.350 is amended by revising the table entitled 
``Wisconsin--2010 Sulfur Dioxide NAAQS (Primary)'' to read as follows:


Sec.  81.350  Wisconsin.

* * * * *

[[Page 1169]]



                                 Wisconsin--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated Area 1 4             --------------------------------------------------------------------
                                                 Date 2                              Type
----------------------------------------------------------------------------------------------------------------
Rhinelander, WI............................         10/4/13  Nonattainment.
    Oneida County (part)
        City of Rhinelander, Crescent Town,
         Newbold Town, Pine Lake Town, and
         Pelican Town.
Columbia County, WI........................         9/12/16  Attainment/Unclassifiable.
    Columbia County
Adams County...............................  ..............  Attainment/Unclassifiable.
Ashland County.............................  ..............  Attainment/Unclassifiable.
Barron County..............................  ..............  Attainment/Unclassifiable.
Bayfield County............................  ..............  Attainment/Unclassifiable.
Brown County...............................  ..............  Attainment/Unclassifiable.
Buffalo County.............................  ..............  Attainment/Unclassifiable.
Burnett County.............................  ..............  Attainment/Unclassifiable.
Calment County.............................  ..............  Attainment/Unclassifiable.
Chippewa County............................  ..............  Attainment/Unclassifiable.
Clark County...............................  ..............  Attainment/Unclassifiable.
Crawford County............................  ..............  Attainment/Unclassifiable.
Dane County................................  ..............  Attainment/Unclassifiable.
Dodge County...............................  ..............  Attainment/Unclassifiable.
Door County................................  ..............  Attainment/Unclassifiable.
Douglas County.............................  ..............  Attainment/Unclassifiable.
Dunn County................................  ..............  Attainment/Unclassifiable.
Eau Claire County..........................  ..............  Attainment/Unclassifiable.
Florence County............................  ..............  Attainment/Unclassifiable.
Fond du Lac County.........................  ..............  Attainment/Unclassifiable.
Forest County..............................  ..............  Attainment/Unclassifiable.
Grant County...............................  ..............  Attainment/Unclassifiable.
Green County...............................  ..............  Attainment/Unclassifiable.
Green Lake County..........................  ..............  Attainment/Unclassifiable.
Iowa County................................  ..............  Attainment/Unclassifiable.
Iron County................................  ..............  Attainment/Unclassifiable.
Jackson County.............................  ..............  Attainment/Unclassifiable.
Jefferson County...........................  ..............  Attainment/Unclassifiable.
Juneau County..............................  ..............  Attainment/Unclassifiable.
Kenosha County.............................  ..............  Attainment/Unclassifiable.
Kewaunee County............................  ..............  Attainment/Unclassifiable.
La Crosse County...........................  ..............  Attainment/Unclassifiable.
Lafayette County...........................  ..............  Attainment/Unclassifiable.
Langlade County............................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Manitowoc County...........................  ..............  Attainment/Unclassifiable.
Marathon County............................  ..............  Attainment/Unclassifiable.
Marinette County...........................  ..............  Attainment/Unclassifiable.
Marquette County...........................  ..............  Attainment/Unclassifiable.
Menominee County...........................  ..............  Attainment/Unclassifiable.
Milwaukee County...........................  ..............  Attainment/Unclassifiable.
Monroe County..............................  ..............  Attainment/Unclassifiable.
Oconto County..............................  ..............  Attainment/Unclassifiable.
Oneida County..............................  ..............  Attainment/Unclassifiable.
Ozaukee County.............................  ..............  Attainment/Unclassifiable.
Pepin County...............................  ..............  Attainment/Unclassifiable.
Pierce County..............................  ..............  Attainment/Unclassifiable.
Polk County................................  ..............  Attainment/Unclassifiable.
Portage County.............................  ..............  Attainment/Unclassifiable.
Price County...............................  ..............  Attainment/Unclassifiable.
Racine County..............................  ..............  Attainment/Unclassifiable.
Richland County............................  ..............  Attainment/Unclassifiable.
Rock County................................  ..............  Attainment/Unclassifiable.
Rusk County................................  ..............  Attainment/Unclassifiable.
St. Croix County...........................  ..............  Attainment/Unclassifiable.
Sauk County................................  ..............  Attainment/Unclassifiable.
Sawyer County..............................  ..............  Attainment/Unclassifiable.
Shawano County.............................  ..............  Attainment/Unclassifiable.
Sheboygan County...........................  ..............  Attainment/Unclassifiable.
Taylor County..............................  ..............  Attainment/Unclassifiable.
Trempealeau County.........................  ..............  Attainment/Unclassifiable.
Vernon County..............................  ..............  Attainment/Unclassifiable.
Vilas County...............................  ..............  Attainment/Unclassifiable.
Walworth County............................  ..............  Attainment/Unclassifiable.
Washburn County............................  ..............  Attainment/Unclassifiable.

[[Page 1170]]

 
Washington County..........................  ..............  Attainment/Unclassifiable.
Waukesha County............................  ..............  Attainment/Unclassifiable.
Waupaca County.............................  ..............  Attainment/Unclassifiable.
Waushara County............................  ..............  Attainment/Unclassifiable.
Winnebago County...........................  ..............  Attainment/Unclassifiable.
Wood County................................  ..............  Attainment/Unclassifiable.
Forest County Potawatomi Community Indian    ..............  Attainment/Unclassifiable.
 Tribe \3\.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.
\3\ Includes Indian country of the tribe listed in this table located in Forest County, Wisconsin. Information
  pertaining to areas of Indian country in this table is intended for Clean Air Act planning purposes only and
  is not an EPA determination of Indian country status or any Indian country boundary. EPA lacks the authority
  to establish Indian country land status, and is making no determination of Indian country boundaries, in this
  table.
\4\ Outagamie County will be designated by December 31, 2020.

* * * * *

0
52. Section 81.351 is amended by adding a table titled ``Wyoming--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table ``Wyoming--1971 
Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.351  Wyoming.

* * * * *

                                  Wyoming--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area 1 2             --------------------------------------------------------------------
                                                 Date 3                              Type
----------------------------------------------------------------------------------------------------------------
Albany County..............................  ..............  Attainment/Unclassifiable.
Big Horn County............................  ..............  Attainment/Unclassifiable.
Campbell County............................  ..............  Attainment/Unclassifiable.
Crook County...............................  ..............  Attainment/Unclassifiable.
Fremont County (part)......................  ..............  Attainment/Unclassifiable.
    All areas west of the western border of                  ...................................................
     Township 40North-Range 93West, T39N-
     R93W, and T38N-R93W, and south of US
     Route 20.
Goshen County..............................  ..............  Attainment/Unclassifiable.
Hot Springs County.........................  ..............  Attainment/Unclassifiable.
Johnson County.............................  ..............  Attainment/Unclassifiable.
Lincoln County.............................  ..............  Attainment/Unclassifiable.
Natrona County.............................  ..............  Attainment/Unclassifiable.
Niobrara County............................  ..............  Attainment/Unclassifiable.
Park County................................  ..............  Attainment/Unclassifiable.
Platte County..............................  ..............  Attainment/Unclassifiable.
Sheridan County............................  ..............  Attainment/Unclassifiable.
Sublette County............................  ..............  Attainment/Unclassifiable.
Sweetwater County (part)...................  ..............  Attainment/Unclassifiable.
    All areas of the county east of US                       ...................................................
     Route 191.
Teton County...............................  ..............  Attainment/Unclassifiable.
Uinta County...............................  ..............  Attainment/Unclassifiable.
Washakie County............................  ..............  Attainment/Unclassifiable.
Weston County..............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ Carbon and Converse Counties, and the remaining portions of Fremont and Sweetwater Counties, all which will
  be designated by December 31, 2020.
\3\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
53. Section 81.352 is amended by adding a table titled ``American 
Samoa--2010 Sulfur Dioxide NAAQS (Primary)'' following the table 
``American Samoa--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' 
to read as follows:


Sec.  81.352  American Samoa.

* * * * *

[[Page 1171]]



                               American Samoa--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
             Designated area 1              --------------------------------------------------------------------
                                                 Date 2                              Type
----------------------------------------------------------------------------------------------------------------
Territory Wide.............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
54. Section 81.353 is amended by adding a table titled ``Guam--2010 
Sulfur Dioxide NAAQS (Primary)'' following the table ``Guam--1971 
Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as follows:


Sec.  81.353   Guam.

* * * * *

                                    Guam--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
             Designated area 1              --------------------------------------------------------------------
                                                 Date 2                              Type
----------------------------------------------------------------------------------------------------------------
Piti-Cabras................................  ..............  Nonattainment.
    The portion of Guam within a 6.074-km                    ...................................................
     radius centered on UTM Easting
     249,601.60 m, and UTM Northing
     1,489,602.00 m (UTM Zone 55N).
Rest of Territory..........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
55. Section 81.354 is amended by adding a table titled ``Northern 
Mariana Islands--2010 Sulfur Dioxide NAAQS (Primary)'' following the 
table ``Northern Mariana Islands--1971 Sulfur Dioxide NAAQS (Primary 
and Secondary)'' to read as follows:


Sec.  81.354  Northern Mariana Islands.

* * * * *

                          Northern Mariana Islands--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
             Designated area 1              --------------------------------------------------------------------
                                                 Date 2                              Type
----------------------------------------------------------------------------------------------------------------
Territory Wide.............................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
56. Section 81.355 is amended by adding a table titled ``Puerto Rico--
2010 Sulfur Dioxide NAAQS (Primary)'' following the table ``Puerto 
Rico--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' to read as 
follows:


Sec.  81.355   Puerto Rico.

* * * * *

                                Puerto Rico--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
             Designated area 1              --------------------------------------------------------------------
                                                 Date 2                              Type
----------------------------------------------------------------------------------------------------------------
San Juan, PR:                                                ...................................................
    Cata[ntilde]o Municipality.............  ..............  Nonattainment.
    Toa Baja Municipality (part)...........  ..............  Nonattainment.
        Palo Seco Ward.                                      ...................................................
        Sabana Seca Ward.                                    ...................................................
    San Juan Municipality (part)...........  ..............  Nonattainment.
        San Juan Antiguo Ward.                               ...................................................
        Santurce Ward.                                       ...................................................
        Hato Rey Norte Ward.                                 ...................................................
        Gobernador Pinero Ward.                              ...................................................
    Guaynabo Municipality (part)...........  ..............  Nonattainment.

[[Page 1172]]

 
        Pueblo Viejo Ward.                                   ...................................................
    Bayam[oacute]n Municipality (part).....  ..............  Nonattainment.
        Juan S[aacute]nchez Ward.                            ...................................................
Guayama-Salinas, PR:                                         ...................................................
    Salinas Municipality (part)............  ..............  Nonattainment.
        Aguirre Ward.                                        ...................................................
        Lapa Ward.                                           ...................................................
Rest of Territory..........................  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. The EPA is not determining
  the boundaries of any area of Indian country in this table, including any area of Indian country located in
  the larger designation area. The inclusion of any Indian country in the designation area is not a
  determination that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

0
57. Section 81.356 is amended by adding a table entitled ``Virgin 
Islands--2010 Sulfur Dioxide NAAQS (Primary)'' following the table 
``Virgin Islands--1971 Sulfur Dioxide NAAQS (Primary and Secondary)'' 
to read as follows:


Sec.  81.356  Virgin Islands.

* * * * *

                               Virgin Islands--2010 Sulfur Dioxide NAAQS (Primary)
----------------------------------------------------------------------------------------------------------------
                                                                         Designation
            Designated area \1\             --------------------------------------------------------------------
                                                Date \2\                             Type
----------------------------------------------------------------------------------------------------------------
All of Virgin Islands AQCR 247.............  ..............  Attainment/Unclassifiable.
----------------------------------------------------------------------------------------------------------------
\1\ Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the
  boundaries of any area of Indian country in this table, including any area of Indian country located in the
  larger designation area. The inclusion of any Indian country in the designation area is not a determination
  that the state has regulatory authority under the Clean Air Act for such Indian country.
\2\ This date is April 9, 2018, unless otherwise noted.

* * * * *

[FR Doc. 2017-28423 Filed 1-8-18; 8:45 am]
 BILLING CODE 6560-50-P


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