Title 40—Protection of Environment--Volume 1
PART 81—DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES
§ 81.270   Northern Arizona Intrastate Air Quality Control Region.
The Northern Arizona Intrastate Air Quality Control Region consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of the area so delimited):
In the State of Arizona: Apache County, Coconino County, Navajo County, Yavapai County.
§ 81.271   Central Arizona Intrastate Air Quality Control Region.
The Central Arizona Intrastate Air Quality Control Region consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of the area so delimited):
In the State of Arizona: Gila County, Pinal County.
§ 81.272   Southeast Arizona Intrastate Air Quality Control Region.
The Southeast Arizona Intrastate Air Quality Control Region consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of the area so delimited):
In the State of Arizona: Cochise County, Graham County, Greenlee County, Santa Cruz County.
§ 81.273   Lake County Intrastate Air Quality Control Region.
The Lake County Intrastate Air Quality Control Region consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of the area so delimited):
In the State of California: Lake County.
§ 81.274   Mountain Counties Intrastate Air Quality Control Region.
The Mountain Counties Intrastate Air Quality Control Region consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of the area so delimited):
In the State of California: Amador County, Calaveras County, Mariposa County, Nevada Country, Plumas County, Sierra County, Tuolumne County.
El Dorado County—all of El Dorado County except that portion within the drainage area naturally tributary to Lake Tahoe including said Lake.
Placer County—all of Placer County except the following described area: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, Mount Diablo Base and meridian (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, 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.
§ 81.275   Lake Tahoe Intrastate Air Quality Control Region.
The Lake Tahoe Intrastate Air Quality Control Region consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of the area so delimited:
In the State of California:
El Dorado County—that portion of El Dorado County within the drainage area naturally tributary to Lake Tahoe including said Lake.
Placer County—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, Mount Diablo Base and Meridian (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, 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.
§ 81.276   Nevada Intrastate Air Quality Control Region.
The Nevada Intrastate Air Quality Control Region consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of the area so delimited):
In the State of Nevada: Churchill County, Elko County, Esmeralda County, Eureka County, Humboldt County, Lander County, Lincoln County, Mineral County, Nye County, Pershing County, and White Pine County.
§ 81.300   Scope.
(a) Attainment status designations as approved or designated by the Environmental Protection Agency (EPA) pursuant to section 107 of the CAA are listed in this subpart. Area designations are subject to revision whenever sufficient data become available to warrant a redesignation. Both the state and EPA can initiate changes to these designations, but any state redesignation request must be submitted to EPA for concurrence. The EPA has replaced the national ambient air quality standards for particulate matter measured as total suspended particulate with standards measured as particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM-10). Accordingly, area designations for PM-10 are included in the lists in subpart C of this part. However, the TSP area designations will also remain in effect until the Administrator determines that the designations are no longer necessary for implementing the maximum allowable increases in concentrations of particulate matter pursuant to section 163(b) of the CAA, as explained in paragraph (b) of this section. The EPA has also added national ambient air quality standards for fine particulate matter measured as particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers (PM 2.5 ). Accordingly, area designations for PM 2.5 are included in the lists in subpart C of this part.
(b) Designated areas which are listed below as attainment (“Better than national standards”) or unclassifiable (“Cannot be classified”) for total suspended particulate (TSP), sulfur dioxide (SO 2 ), and nitrogen dioxide (NO 2 ), represent potential baseline areas or portions of baseline areas which are used in determining compliance with maximum allowable increases (increments) in concentrations of the respective pollutants for the prevention of significant deterioration of air quality (PSD). With respect to areas identified as “Rest of State” it should be assumed that such reference comprises a single area designation for PSD baseline area purposes. However, for PM-10, the use of the term “Rest of State” is an interim measure to designate as unclassifiable all locations not originally designated nonattainment for PM-10 in accordance with section 107(d)(4)(B) of the Act.
(c) For PM-10 areas designated nonattainment, pursuant to section 107(d)(4)(b) by operation of law upon enactment of the 1990 Amendments to the Act, the boundaries are more fully described as follows:
(1) For cities and towns, the boundary of the nonattainment area is defined by the municipal boundary limits as of November 15, 1990, the date the 1990 Amendments were signed into law, except for areas which were formerly categorized as “Group I areas”, in which case the nonattainment area is defined by the municipal boundary limits as of October 31, 1990.
(2) Similarly, for planning areas, air quality maintenance areas, air basins, and urban growth boundaries the nonattainment area is defined by the entire planning area, air quality maintenance area, air basin, or urban growth boundary as of November 15, 1990, except for areas which were formerly “Group I”, in which case the boundary is defined by the entire planning area, air quality maintenance area, air basin, or urban growth boundary as of October 31, 1990. The foregoing is true except to the extent the planning area, air quality maintenance area, air basin, or urban growth boundary is further defined, e.g., by township, range and/or section. Such geographical descriptors remain a fixed part of the nonattainment boundaries irrespective of whether they are included in the planning area, air quality maintenance area, air basin, or urban growth boundary.
(3) The boundaries of PM-10 areas subsequently redesignated pursuant to section 107(d)(3) of the Act will be defined by the city, town, planning area, air quality maintenance area, air basin, or urban growth boundary in effect the date the designation is promulgated.
(d) For ozone and carbon monoxide (CO) areas the effective date(s) of air quality area designations and classifications are described as follows:
(1) For the portions of ozone and CO nonattainment areas that were designated nonattainment prior to the date of enactment of the Clean Air Act Amendments of 1990 (preenactment), the effective date is November 15, 1990.
(2) For the portions of nonattainment areas that were designated attainment prior to November 15, 1990, and included as part of an area designated nonattainment prior to November 15, 1990, the effective date of the designation to nonattainment is November 15, 1990 for:
(i) Purposes of determining whether the portion of the nonattainment area is eligible for the 5-percent classification adjustment under section 181(a)(4) (ozone) or section 186(a)(3) (CO);
(ii) Triggering the process for determining the C/MSA boundary adjustment under section 107(d)(4)(A)(iv)-(v);
(iii) Determining the scope of a “covered area” under section 211 (k)(10)(D) and opt-in under section 211 (k)(6) for the reformulated gasoline requirement and for purposes of determining the baseline of the reductions needed to meet the requirement to reduce volatile organic compounds by 15 percent under section 181 (b)(1). For all other purposes the effective designation date is January 6, 1992 (except for the Towns of Blooming Grove, Chester, Highlands, Monroe, Tuxedo, Warwick, and Woodbury in Orange County, NY, and for Putnam County, NY, for which the effective date is January 15, 1992, and for the remainder of Orange County, NY, for which the effective date is April 21, 1994).
(3) For nonattainment areas designated attainment preenactment, and not included as part of any nonattainment area that was designated nonattainment preenactment, the effective date for all purposes is the date of the designation.
(e) Provisions for Early Action Compact Areas with Deferred Effective Date of Nonattainment Designation.
(1) Definitions. The following definitions apply for purposes of this subpart. Any term not defined herein shall have the meaning as defined in 40 CFR 51.100 and § 81.1
(i) Early Action Compact. The term “early action compact” (“compact”) means an agreement entered into on or before December 31, 2002, by—
(A) The Administrator;
(B) A State;
(C) An official of a county, parish, or town that—
( 1 ) Is designated attainment for the 1-hour national ambient air quality standard for ozone;
( 2 ) Has monitored data representing the most recent 3 years of quality-assured data that meets the 1-hour national ambient air quality standard for ozone; and
( 3 ) May or may not be meeting the 8-hour national ambient air quality standard for ozone.
(ii) State. The term “State” has the meaning given the term in section 302 of the Clean Air Act (42 U.S.C. 7602).
(iii) Area. The term “area” means one or more counties, parishes, or towns that are participating in an early action compact.
(iv) State Implementation Plan. The term “State implementation plan” (“SIP”) means a plan required to be submitted to the Administrator by a State under section 110 of the Clean Air Act (42 U.S.C. 7410).
(v) 8-hour National Ambient Air Quality Standard means the air quality standards under the Clean Air Act (42 U.S.C. 7401 et seq. ) codified at 40 CFR 50.10.
(2) What Are Early Action Compact Areas Required To Do? (i) Not later than June 16, 2003, the local area shall—
(A) Submit to the Administrator a list identifying and describing the local control measures that are being considered for adoption during the local planning process; and
(B) Provide to the public clear information on the measures under consideration;
(ii) Not later than March 31, 2004, the local plan shall be completed and submitted to the State (with a copy of the local plan provided to the Administrator), which shall include—
(A) One or more locally adopted measures that are specific, quantified, and permanent and that, if approved by the Administrator, will be enforceable as part of the State implementation plan;
(B) Specific implementation dates for the adopted control measures;
(C) Sufficient documentation to ensure that the Administrator will be able to make a preliminary technical assessment based on control measures demonstrating attainment of the 8-hour ozone national ambient air quality standard under the Clean Air Act not later than December 31, 2007;
(iii) Not later than December 31, 2004, the State shall submit to the Administrator a revision to the SIP consisting of the local plan, including all adopted control measures, and a demonstration that the applicable area will attain the 8-hour ozone national ambient air quality standard not later than December 31, 2007;
(iv) The area subject to the early action compact shall implement expeditiously, but not later than December 31, 2005, the local control measures that are incorporated in the SIP;
(v) Not later than June 30, 2006, the State shall submit to the Administrator a report describing the progress of the local area since December 31, 2005, that includes—
(A) A description of whether the area continues to implement its control measures, the emissions reductions being achieved by the control measures, and the improvements in air quality that are being made; and
(B) Sufficient information to ensure that the Administrator will be able to make a comprehensive assessment of air quality progress in the area; and
(vi) Not later than December 31, 2007, the area subject to a compact shall attain the 8-hour ozone national ambient air quality standard.
(3) What Action Shall the Administrator Take To Promulgate Designations for an Early Action Compact Area That Does Not Meet (or That Contributes to Ambient Air Quality in a Nearby Area That Does Not Meet) the 8-Hour Ozone National Ambient Air Quality Standard? —(i) General. With the exception of the Denver area subject to a compact and notwithstanding clauses (i) through (iv) of section 107(d)(1)(B) of the Clean Air Act (42 U.S.C. 7407(d)(1)(B)), the Administrator shall defer until April 15, 2008 the effective date of a nonattainment designation of any area subject to a compact that does not meet (or that contributes to ambient air quality in a nearby area that does not meet) the 8-hour ozone national ambient air quality standard if the Administrator determines that the area subject to a compact has met the requirements in paragraphs (e)(2)(i) through (iii) of this section. The Administrator shall defer until November 20, 2007 the effective date of a nonattainment designation of the Denver area.
(ii) Requirements not met. (A) If the Administrator determines that an area subject to a compact has not met the requirements in paragraphs (e)(2)(i) and (ii) of this section, the nonattainment designation will become effective June 15, 2004.
(B) Prior to expiration of the deferred effective date on April 15, 2008, if the Administrator determines that an area or the State subject to a compact has not met either requirement in paragraphs (e)(2)(iv) and (v) of this section, the nonattainment designation shall become effective as of the deferred effective date, unless EPA takes affirmative rulemaking action to further extend the deadline.
(C) If the Administrator determines that an area subject to a compact and/or State has not met any requirement in paragraphs (e)(2)(iv) through (vi) of this section, the nonattainment designation shall become effective as of the deferred effective date, unless EPA takes affirmative rulemaking action to further extend the deadline.
(D) Not later than 1 year after the effective date of the nonattainment designation, the State shall submit to the Administrator a revised attainment demonstration SIP.
(iii) All Requirements Met. If the Administrator determines that an area subject to a compact has met all of the requirements under subparagraph (e)(2) of this section—
(A) The Administrator shall designate the area as attainment under section 107(d)(1)(B) of the Clean Air Act; and
(B) The designation shall become effective no later than April 15, 2008.
(4) What Action Shall the Administrator Take To Approve or Disapprove a Revision to the SIP Submitted by a Compact Area on or Before December 31, 2004? (i) Not later than September 30, 2005, the Administrator shall take final action to approve or disapprove a revision to the SIP, in accordance with paragraph (e)(2)(iii) of this section, that is submitted by a compact area on or before December 31, 2004.
(ii) If the Administrator approves the SIP revision, the area will continue to be eligible for a deferral of the effective date of nonattainment designation.
(iii) If the Administrator disapproves the SIP revision, the nonattainment designation shall become effective on September 30, 2005.
(iv) If the area's nonattainment designation applies, the State shall comply with paragraph (e)(3)(ii)(D) of this section.
§ 81.301   Alabama.
Alabama—TSP
1 See Federal Register of June 21, 1981.
Alabama—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Alabama—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Alabama—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Alabama—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all of Alabama. The Birmingham area is a maintenance area for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Alabama—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Alabama—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Alabama—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Alabama—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Alabama—NO 2 (1971 Annual Standard)
Alabama—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Alabama—Alabama—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Alabama—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 Includes any Indian country in each county or area, unless otherwise specified.
2 This date is July 20, 2012, unless otherwise noted.
Alabama—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Alabama—1978 Lead NAAQS
Alabama—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.302   Alaska.
Alaska—TSP
Alaska—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Alaska—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Alaska—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Alaska—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Alaska.
Alaska—PM-10
Alaska—1997 Annual PM 2 5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Alaska—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Alaska—1997 24-Hour PM 2 5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Alaska—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Alaska—NO 2 (1971 Annual Standard)
Alaska—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Alaska—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Alaska—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
Alaska—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Alaska—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.303   Arizona.
Arizona—TSP
1 EPA designation replaces State designation.
2 Excluding Ajo (T12S, R6W).
Arizona—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 Only that portion in Gila County.
2 Only that portion in Greenlee County.
3 EPA designation replaces State designation.
Arizona—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Arizona—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Arizona—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Arizona.
Arizona—PM-10
Arizona—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Arizona—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Arizona—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Arizona—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Arizona—NO 2 (1971 Annual Standard)
Arizona—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Arizona—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Arizona—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA 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 Includes any Indian country in each county or area, unless otherwise specified.
Arizona—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
3 See Section 3.0 of the EPA's technical support document for Arizona, titled “Arizona Final Area Designations for the 2015 Ozone National Ambient Air Quality Standards Technical Support Document (TSD),” for more information and a map showing the locations of “parcels M & N” (available in Docket ID: EPA-HQ-OAR-2017-0548).
Arizona—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.304   Arkansas.
Arkansas—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Arkansas—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Arkansas—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Arkansas—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Arkansas.
Arkansas—PM-10
Arkansas—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Arkansas—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Arkansas—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Arkansas—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Arkansas—NO 2 (1971 Annual Standard)
Arkansas—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Arkansas—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective April 23, 2010.
Arkansas—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
Arkansas—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Arkansas—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.305   California.
California—TSP
California—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
California—2010 Sulfur Dioxide NAAQS
[Primary]
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.
California—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
California—Ozone (1-Hour Standard) 4
1 This date is October 18, 2000 unless otherwise noted.
2 An area designated as an ozone nonattainment area as of the date of enactment of the CAAA of the 1990 that did not violate the ozone NAAQS during the period of 1987-1989.
3 This date is January 16, 2001.
4 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in California. The Monterey Bay, San Diego, and Santa Barbara-Santa Maria-Lompoc areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
5 Excludes Morongo Band of Mission Indians' Indian country in Riverside County.
6 Includes Indian country of the tribe listed in this table. Information pertaining to areas of Indian country in this table is intended for CAA 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.
California—PM-10
California—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
California—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
California—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
California—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
California—NO 2 (1971 Annual Standard)
California—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
California—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
b The boundaries for these designated areas are based on coordinates of latitude and longitude derived from EPA Region 9's GIS database and are illustrated in a map entitled “Eastern San Diego County Attainment Areas for the 8-Hour Ozone NAAQS,” dated March 9, 2004, including an attached set of coordinates. The map and attached set of coordinates are available at EPA's Region 9 Air Division office. The designated areas roughly approximate the boundaries of the reservations for these tribes, but their inclusion in this table is intended for CAA planning purposes only and is not intended to be a federal determination of the exact boundaries of the reservations. Also, the specific listing of these tribes in this table does not confer, deny, or withdraw Federal recognition of any of the tribes so listed nor any of the tribes not listed.
c The use of reservation boundaries for this designation is for purposes of CAA planning only and is not intended to be a federal determination of the exact boundaries of the reservations. Nor does the specific listing of the Tribes in this table confer, deny, or withdraw Federal recognition of any of the Tribes listed or not listed.
d Excludes Morongo Band of Mission Indians' Indian country in Riverside County.
e Includes Indian country of the tribe listed in this table. Information pertaining to areas of Indian country in this table is intended for CAA 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.
f Excludes the Pechanga Reservation.
g Excludes Indian country of the Agua Caliente Band of Cahuilla Indians, the Augustine Band of Cahuilla Mission Indians, the Cabazon Band of Mission Indians, the Santa Rosa Band of Cahuilla Indians, the Torres Martinez Desert Cahuilla Indians, and the Twenty-Nine Palms Band of Mission Indians in Riverside County.
1 This date is June 15, 2004, unless otherwise noted.
2 This date is June 4, 2010.
California—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA 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 Includes any Indian country in each county or area, unless otherwise specified.
California—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
3 See Section 23.0 of the EPA's technical support document for California, titled “California Final Area Designations for the 2015 Ozone National Ambient Air Quality Standards Technical Support Document (TSD),” for more information and maps showing the locations of the main body of the reservation and the non-contiguous Pu'eska Mountain and Meadowbrook lands (available in Docket ID: EPA-HQ-OAR-2017-0548).
4 See Section 22.0 of the EPA's technical support document for California, titled “California Final Area Designations for the 2015 Ozone National Ambient Air Quality Standards Technical Support Document (TSD),” for more information and maps showing the boundaries of the nonattainment area (available in Docket ID: EPA-HQ-OAR-2017-0548).
California—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.306   Colorado.
Colorado—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Colorado—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Colorado—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Colorado—Ozone (1-Hour Standard) 4
1 This date is October 18, 2000, unless otherwise noted.
2 An area designated as an ozone nonattainment area as of the date of enactment of the CAAA of the 1990 that did not violate the ozone NAAQS during the period of 1987-1989.
3 This date is January 16, 2001.
4 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Colorado except the Denver (Denver-Boulder-Greeley-Ft. Collins-Love) area where it is revoked effective November 20, 2008.
Colorado—PM-10
Colorado—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Colorado—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Colorado—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Colorado—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Colorado—NO 2 (1971 Annual Standard)
Colorado—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Colorado—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective November 20, 2007.
Colorado—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA 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.
Colorado—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Colorado—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.307   Connecticut.
Connecticut—TSP
Connecticut—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Connecticut—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Connecticut—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Connecticut—Ozone (1-Hour Standard) 2
1 This date is November 15, 1990, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Connecticut.
Connecticut—PM-10
Connecticut—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Connecticut—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Connecticut—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted
Connecticut—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Connecticut—NO 2 (1971 Annual Standard)
Connecticut—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Connecticut—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Connecticut—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA 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.
Connecticut—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Connecticut—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.308   Delaware.
Delaware—TSP
Delaware—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Delaware—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Delaware—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Delaware—Ozone (1-Hour Standard) 3
1 This date is November 15, 1990, unless otherwise noted.
2 This date is October 18, 2000.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Delaware.
Delaware—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Delaware—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Delaware—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Delaware—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
NO 2 (1971 Annual Standard)
Delaware—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Delaware—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Delaware—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
4 Attainment date is extended to July 20, 2016.
Delaware—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Delaware—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.309   District of Columbia.
District of Columbia—TSP
District of Columbia—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
District of Columbia—2010 Sulfur Dioxide NAAQS
[Primary]
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.
District of Columbia-Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
District of Columbia—Ozone (1-Hour Standard) 2
1 This date is November 15, 1990, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in the District of Columbia.
District of Columbia—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
District of Columbia—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
District of Columbia—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
District of Columbia—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
District of Columbia—NO 2 (1971 Annual Standard)
District of Columbia—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
District of Columbia—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
District of Columbia—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 Excludes Indian country located in each area, unless otherwise noted.
District of Columbia—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
District of Columbia—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.310   Florida.
Florida—TSP
1 EPA designation only.
Florida—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 EPA designation only.
Florida—2010 Sulfur Dioxide NAAQS
[Primary]
1 This date is 4/9/2018, 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. 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.
Florida—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Florida—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Florida. The Jacksonville, Miami-Fort Lauderdale-W. Palm Beach, and Tampa-St. Petersburg-Clearwater areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Florida—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Florida—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is October 6, 2016, unless otherwise noted.
Florida—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Florida—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Florida—NO 2 (1971 Annual Standard)
1 EPA designation only.
Florida—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Florida—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Florida—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Includes any Indian country located in each county or area, unless otherwise noted.
Florida—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Florida—1978 Lead NAAQS
Florida—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.311   Georgia.
Georgia—TSP
Georgia—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
* See Federal Register of September 23, 1981.
Georgia—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Georgia—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Georgia—1978 Lead NAAQS
Georgia—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Georgia, except the Chattanooga (Catoosa County) area where it is revoked effective April 15, 2009.
Georgia—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Georgia—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Georgia—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Georgia—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Georgia—NO 2 (1971 Annual Standard)
Georgia—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Georgia—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective April 15, 2008.
3 The boundary change is effective October 13, 2006.
Georgia—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
Georgia—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Georgia—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.312   Hawaii.
Hawaii—TSP
Hawaii—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 EPA designation replaces State designation.
Hawaii—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Hawaii—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Hawaii—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Hawaii.
Hawaii—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Hawaii—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015 unless otherwise noted.
Hawaii—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Hawaii—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Hawaii—NO 2 (1971 Annual Standard)
Hawaii—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Hawaii—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Hawaii—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Includes any Indian country in each county or area, unless otherwise specified.
Hawaii—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Hawaii—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.313   Idaho.
Idaho—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Idaho—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Idaho—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Idaho—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Idaho.
Idaho PM-10
Idaho—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Idaho—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Idaho—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Idaho—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Idaho—NO 2 (1971 Annual Standard)
Idaho—NO 2
[2010 1-Hour standard]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Idaho—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Idaho—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
Idaho—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Idaho—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.314   Illinois.
Illinois—TSP
Illinois—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Illinois—2010 Sulfur Dioxide NAAQS
[Primary]
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 Williamson County was initially designated on September 12, 2016. The initial designation was reconsidered and modified on October 15, 2019.
4 A portion of Madison County, specifically all of Wood River Township, and the area in Chouteau Township north of Cahokia Diversion Channel, was designated attainment/unclassifiable on 9/12/2016.
Illinois—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Illinois—Ozone (1-Hour Standard) 3
1 This date is October 18, 2000, unless otherwise noted.
2 April 13, 1995.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Illinois. The Jersey Co. and St. Louis areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Illinois—PM-10
Illinois—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Illinois—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes Indian Country located in each county or area, except as otherwise specified.
2 This date is January 28, 2019, unless otherwise noted.
Illinois—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Illinois—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Illinois—NO 2 (1971 Annual Standard)
Illinois—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Illinois—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Illinois—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
4 Attainment date is extended to July 20, 2016.
Illinois—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
3 EPA revised the nonattainment boundary in response to a court decision, which did not vacate any designations for the 2015 ozone NAAQS, but which remanded the designation for the identified county. Because this additional area is part of a previously designated nonattainment area, the implementation dates for the overall nonattainment area ( e.g., the August 3, 2021 attainment date) remain unchanged regardless of this later designation date.
Illinois—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
2. At 80 FR 2233, Jan. 15, 2015, § 81.314 was amended by adding a table entitled “Illinois—2012 Annual PM 2.5 NAAQS (Primary)” following the table “Illinois—1997 Annual PM 2.5 NAAQS [Primary and secondary]”; however, the table appearing in the text was entitled “Illinois—2012 24-Hour PM 2.5 NAAQS (Primary)”.
§ 81.315   Indiana.
Indiana—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 EPA designation replaces State designation.
Indiana-2010 Sulfur Dioxide NAAQS
[Primary]
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.
Indiana—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Indiana—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Indiana. The Evansville, Indianapolis, Louisville, and South Bend-Elkhart areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Indiana—PM-10
Indiana—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Indiana—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Indiana—1997 24-Hour PM 2.5
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Indiana—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Indiana—NO 2 (1971 Annual Standard)
Indiana—NO 2
[2010 1-Hour standard]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Indiana—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 November 22, 2004.
Indiana—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
Indiana—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
3 EPA revised the nonattainment boundary in response to a court decision, which did not vacate any designations for the 2015 ozone NAAQS, but which remanded the designation for the identified county. Because this additional area is part of a previously designated nonattainment area, the implementation dates for the overall nonattainment area ( e.g., the August 3, 2021 attainment date) remain unchanged regardless of this later designation date.
Indiana—1978 Lead NAAQS
Indiana—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.316   Iowa.
Iowa—TSP
1 EPA designation replaces State designation.
Iowa—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Iowa—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Iowa—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Iowa—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Iowa.
Iowa—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Iowa—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Iowa—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Iowa—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Iowa—NO 2 (1971 Annual Standard)
Iowa—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Iowa—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Iowa—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
Iowa—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Iowa—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.317   Kansas.
Kansas—TSP
Kansas—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Kansas—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Kansas—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Kansas—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Kansas. The Kansas City area is a maintenance area for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Kansas—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Kansas—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Kansas—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Kansas—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Kansas—NO 2 (1971 Annual Standard)
Kansas—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Kansas—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Kansas—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
Kansas—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Kansas—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.318   Kentucky.
Kentucky—TSP
Kentucky—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Kentucky—2010 Sulfur Dioxide NAAQS
[Primary]
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, 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.
Kentucky—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Kentucky—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Kentucky. The Cincinnati-Hamilton, Edmonson Co, Huntington-Ashland, Lexington-Fayette, Louisville, Owensboro, and Paducah areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Kentucky—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Kentucky—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Kentucky—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Kentucky—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
NO 2 (1971 Annual Standard)
Kentucky—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Kentucky—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Kentucky—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
Kentucky—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Kentucky—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.319   Louisiana.
Louisiana—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Louisiana—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Louisiana—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Louisiana—1978 Lead NAAQS.
Louisiana—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Louisiana. The Lafayette, Lake Charles, New Orleans, Pointe Coupee Parish, Beauregard Par, Grant Par, LaFourche Par, St James Par, and St Mary Par areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Louisiana—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Louisiana—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Louisiana—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Louisiana—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Louisiana—NO 2 (1971 Annual Standard)
Louisiana—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Louisiana—PM-10
Louisiana—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective December 30, 2011.
Louisiana—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
Louisiana—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Louisiana—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.320   Maine.
Maine—TSP
Maine—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Maine—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Maine—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Maine—Ozone (1-Hour Standard) 4
1 This date is October 18, 2000, unless otherwise noted.
2 Attainment date extended to November 15, 1997.
3 This date is January 16, 2001.
4 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Maine. Hancock and Waldo Counties are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Maine—PM-10
1 This definition of the nonattainment area redefines its borders from the entire City of Presque Isle to this area of 0.6 square miles which circumscribe the area of high emission densities and ambient PM10 levels. (60 FR 2885, January 12, 1995)
Maine—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Maine—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Maine—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Maine—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Maine—NO 2 (1971 Annual Standard)
Maine—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Maine—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Maine—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Includes any Indian country in each county or area, unless otherwise specified.
Maine—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Maine—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.321   Maryland.
Maryland—TSP
1 Regional Planning Districts—defined by the Baltimore Regional Planning Council, Maps showing Districts and non-attainment areas available for inspection at the offices of: EPA, Region III, 6th and Walnut Streets, Phila., Pa. 19106; Md. Bureau of Air Quality and Noise Control, 201 West Preston Street, Baltimore, Md. 21201.
Maryland—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Maryland—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Maryland—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Maryland—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Maryland except the Washington Co. area where it is revoked effective April 15, 2009.
Maryland—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Maryland—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Maryland—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Maryland—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Maryland—NO 2 (1971 Annual Standard)
Maryland—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Maryland—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective April 15, 2008.
3 November 22, 2004.
4 Attainment date is June 15, 2013.
5 Effective March 2, 2012.
Maryland—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
4 Attainment date is extended to July 20, 2016.
Maryland—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Maryland—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.322   Massachusetts.
Massachusetts—TSP
Massachusetts—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 Each city and town, with the exception of Boston and Milton and Belchertown, Granby, Ludlow, Palmer, South Hadley and Wilbraham as indicated above, is a separate Section 107 designated attainment area.
Massachusetts—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Massachusetts—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Massachusetts—Ozone (1-Hour Standard) 3
1 This date is November 15, 1990, unless otherwise noted.
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Massachusetts.
Massachusetts—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Massachusetts—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Massachusetts—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Massachusetts—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Massachusetts—NO 2 (1971 Annual Standard)
1 Each city and town is a separate Section 107 desginated Attainment Area.
Massachusetts—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Massachusetts—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Massachusetts—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA 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 Includes any Indian country in each county or area, unless otherwise specified.
Massachusetts—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Massachusetts—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.323   Michigan.
Michigan—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Michigan—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Michigan—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Michigan—Ozone (1-Hour Standard) 4
1 This date is October 18, 2000, unless otherwise noted.
2 An area designated as an ozone nonattainment area as of the date of enactment of the CAAA of the 1990 that did not violate the ozone NAAQS during the period of 1987-1989.
3 This date is January 16, 2001.
4 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Michigan. The Detroit-Ann Arbor, Flint, Grand Rapids, Muskegon, Allegan Co, and Saginaw-Bay City-Midland areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Michigan—PM-10
Michigan—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Michigan—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Michigan—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Michigan—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Michigan—NO 2 (1971 Annual Standard)
Michigan—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Michigan—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 November 22, 2004.
Michigan—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
Michigan—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Michigan—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.324   Minnesota.
Minnesota—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Minnesota—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Minnesota—CO
1 This date is November 15, 1990, unless otherwise noted.
Minnesota—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Minnesota.
Minnesota—PM-10
1 This date is November 15, 1990, unless otherwise noted.
Minnesota—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Minnesota—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Minnesota—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Minnesota—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Minnesota—NO 2 (1971 Annual Standard)
Minnesota—NO 2 [2010 1-Hour standard]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Minnesota—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Minnesota—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
Minnesota—1978 Lead NAAQS
Minnesota—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. 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.
Minnesota—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.325   Mississippi.
Mississippi—TSP
Mississippi—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Mississippi—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Mississippi—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Mississippi—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Mississippi.
Mississippi—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Mississippi—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Mississippi—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Mississippi—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Mississippi—NO 2 (1971 Annual Standard)
Mississippi—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Mississippi—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Mississippi—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
Mississippi—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Mississippi—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.326   Missouri.
Missouri—TSP
1 EPA designation replaces State designation.
Missouri—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Missouri—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Missouri—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Missouri—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Missouri. The Kansas City and St. Louis areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Missouri—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Missouri—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Missouri—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Missouri—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Missouri—NO 2 (1971 Annual Standard)
Missouri—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Missouri—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Missouri—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
4 Attainment date is extended to July 20, 2016.
Missouri—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
3 EPA revised the nonattainment boundary in response to a court decision, which did not vacate any designations for the 2015 ozone NAAQS, but which remanded the designation for the identified county. Because this additional area is part of a previously designated nonattainment area, the implementation dates for the overall nonattainment area ( e.g., the August 3, 2021 attainment date) remain unchanged regardless of this later designation date.
Missouri—1978 Lead NAAQS
Missouri—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.327   Montana.
Montana—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Montana—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Montana—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Montana—1978 Lead NAAQS
Montana—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Montana.
Montana—PM-10
1 Denotes a single area designation for PSD baseline area purposes.
Montana—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Montana—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Montana—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Montana—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Montana—NO 2 (1971 Annual Standard)
Montana—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Montana—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Montana—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
Montana—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Montana—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.328   Nebraska.
Nebraska—TSP
1 EPA designation replaces state designation.
Nebraska—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Nebraska—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Nebraska—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Nebraska—1978 Lead NAAQS
Nebraska—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Nebraska.
Nebraska—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Nebraska—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Nebraska—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Nebraska—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Nebraska—NO 2 (1971 Annual Standard)
Nebraska—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Nebraska—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Nebraska—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Includes any Indian country in each county or area, unless otherwise specified.
Nebraska—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Nebraska—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.329   Nevada.
Nevada—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 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), excluding the designated areas specifically listed in the table.
Nevada—2010 Sulfur Dioxide NAAQS
[Primary]
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).
Nevada—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Nevada—Ozone (1-Hour Standard) 3
1 This date is October 18, 2000, unless otherwise noted.
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Nevada except the portion of Clark County designated nonattainment for the 8-hour ozone standard effective September 13, 2004 for which the 1-hour ozone standard is revoked effective September 13, 2005.
Nevada—PM-10
1 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 excluding the designated areas specifically listed in the table.
Nevada—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 Statewide 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).
Nevada—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
3 Statewide 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).
Nevada—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 Statewide 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).
Nevada—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 Statewide 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).
Nevada—NO 2 (1971 Annual Standard)
1 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), excluding the designated areas specifically listed in the table.
Nevada—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
2 Statewide 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).
Nevada—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
b The use of reservation boundaries for this designation is for purposes of CAA planning only and is not intended to be a federal determination of the exact boundaries of the reservations. Nor does the specific listing of the Tribes in this table confer, deny or withdraw Federal recognition of any of the Tribes listed or not listed.
1 This date is June 15, 2004, unless otherwise noted.
2 The effective date is September 13, 2004.
Nevada—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Statewide 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).
Nevada—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
3 Hydrographic areas are shown on the State of Nevada Division of Water Resources' map titled Water Resources and Inter-basin Flows (September 1971).
Nevada—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.330   New Hampshire.
New Hampshire—TSP
New Hampshire—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
New Hampshire—2010 Sulfur Dioxide NAAQS
[Primary]
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.
New Hampshire—Carbon Monoxide
New Hampshire—Ozone (1-Hour Standard) 3
1 This date is October 18, 2000 unless otherwise noted.
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in New Hampshire.
New Hampshire—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
New Hampshire—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
New Hampshire—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
New Hampshire—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
New Hampshire—NO 2 (1971 Annual Standard)
New Hampshire—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
New Hampshire—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
New Hampshire—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Includes any Indian country in each county or area, unless otherwise specified.
New Hampshire—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
New Hampshire—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.331   New Jersey.
New Jersey—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
New Jersey—2010 Sulfur Dioxide NAAQS
[Primary]
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.
New Jersey—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
New Jersey—Ozone (1-Hour Standard) 3
1 This date is November 15, 1990, unless otherwise noted.
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in New Jersey.
New Jersey—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
New Jersey—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
New Jersey—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
New Jersey—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
New Jersey—NO 2 (1971 Annual Standard)
New Jersey—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
New Jersey—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
New Jersey—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Attainment date is extended to July 20, 2016.
New Jersey—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
New Jersey—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.332   New Mexico.
New Mexico—TSP
New Mexico—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
New Mexico—2010 Sulfur Dioxide NAAQS
[Primary]
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.
New Mexico—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
New Mexico—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in New Mexico.
New Mexico—PM-10
New Mexico—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
New Mexico—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
New Mexico—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
New Mexico—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
New Mexico—NO 2 (1971 Annual Standard)
New Mexico—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
New Mexico—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
New Mexico—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 Includes any Indian country in each county or area, unless otherwise specified.
2 This date is July 20, 2012, unless otherwise noted.
New Mexico—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
New Mexico—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.333   New York.
New York—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
New York—2010 Sulfur Dioxide NAAQS
[Primary]
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.
New York—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
New York—1978 Lead NAAQS
New York—Ozone (1-Hour Standard) 3
1 This date is October 18, 2000, unless otherwise noted.
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in New York.
New York—PM-10
1 This designation applied only to the annual form of the PM 10 NAAQS. The annual PM 10 NAAQS was revoked for all areas of the state on October 17, 2006.
New York—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005,unless otherwise noted.
New York—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
New York—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
New York—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
New York—NO 2 (1971 Annual Standard)
New York—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
New York—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
New York—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA 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 Includes any Indian country in each county or area, unless otherwise specified.
New York—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
New York—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.334   North Carolina.
North Carolina—TSP
North Carolina—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
North Carolina—2010 Sulfur Dioxide NAAQS
[Primary]
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.
North Carolina—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
North Carolina—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in North Carolina except the Cumberland Co. (Fayetteville), Triad (Greensboro-Winston-Salem-High Point), and Unifour (Hickory-Morgantown-Lenoir areas where it is revoked effective April 15, 2009.
North Carolina—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
North Carolina—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
North Carolina—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
North Carolina—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
North Carolina—NO 2 (1971 Annual Standard)
North Carolina—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
North Carolina—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective April 15, 2008.
3 November 22, 2004.
4 Attainment date extended to June 15, 2011.
North Carolina—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
North Carolina—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
North Carolina—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.335   North Dakota.
North Dakota—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
North Dakota—2010 Sulfur Dioxide NAAQS
[Primary]
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.
North Dakota—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
North Dakota—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in North Dakota.
North Dakota—PM-10
1 Denotes a single area designation for PSD baseline area purposes.
North Dakota—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
North Dakota—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
North Dakota—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
North Dakota—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
North Dakota—NO 2 (1971 Annual Standard)
North Dakota—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
North Dakota—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
North Dakota—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
North Dakota—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
North Dakota—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.336   Ohio.
Ohio—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Ohio—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Ohio—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
2 The listed designation does not reflect EPA action under section 107(d)(4)(A). At the date of enactment of the Clean Air Act Amendments, Jefferson County, Ohio; Brooke County, West Virginia; and Hancock County, West Virginia, were designated Unclassifiable/attainment, by operation of law, under section 107(d)(1)(C) of the Clean Air Act. However, these States and EPA are reviewing whether to confirm or reverse that designation under the process set out under section 107(d)(4)(A) and will publish a separate notice to that effect.
Ohio—Ozone (1-Hour Standard) 3
1 This date is November 15, 1990, unless otherwise noted.
3 The 1-hour standard is revoked effective June 15, 2005 for all areas in Ohio. The Canton, Cleveland-Akron-Lorain, Clinton Co, Columbus, Dayton-Springfield, Preble Co, Steubenville, Toledo, Youngstown-Warren-Sharon, and Columbiana Co. areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Ohio—PM-10
Ohio—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Ohio—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Ohio—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Ohio—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Ohio—NO 2 (1971 Annual Standard)
Ohio—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Ohio—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Ohio—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
4 Attainment date is extended to July 20, 2016.
Ohio—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Ohio—1978 Lead NAAQS
Ohio—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.337   Oklahoma.
Oklahoma—TSP
Oklahoma—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Oklahoma—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Oklahoma—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Oklahoma—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Oklahoma.
Oklahoma—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Oklahoma—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Oklahoma—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Oklahoma—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Oklahoma—NO 2 (1971 Annual Standard)
Oklahoma—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Oklahoma—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Oklahoma—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 Includes any Indian country in each county or area, unless otherwise specified.
2 This date is July 20, 2012, unless otherwise noted.
Oklahoma—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Oklahoma—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.338   Oregon.
Oregon—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Oregon—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Oregon—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Oregon—Ozone (1-Hour Standard) 3
1 This date is October 18, 2000, unless otherwise noted.
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Oregon. Portland-Vancouver AQMA is a maintenance area for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Oregon—PM-10
Oregon—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Oregon—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Oregon—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Oregon—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 his date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Oregon—NO 2 (1971 Annual Standard)
Oregon—NO 2
[2010 1-Hour standard]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Oregon—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Oregon—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
Oregon—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Oregon—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.339   Pennsylvania.
Pennsylvania—TSP
Pennsylvania—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Pennsylvania—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Pennsylvania—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Pennsylvania—Ozone (1-Hour Standard) 4
1 This date is October 18, 2000, unless otherwise noted.
2 Attainment date extended to 11/15/1997.
3 This date is January 16, 2001.
4 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Pennsylvania. The Pittsburgh-Beaver Valley and Reading areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Pennsylvania—PM-10
Pennsylvania—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Pennsylvania—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Pennsylvania—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Pennsylvania—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Pennsylvania—NO 2 (1971 Annual Standard)
Pennsylvania—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Pennsylvania—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 November 22, 2004.
Pennsylvania—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
4 Attainment date is extended to July 20, 2016.
Pennsylvania—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Pennsylvania—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
2 Center Township was included in the nonattainment area as of 12/31/2011.
§ 81.340   Rhode Island.
Rhode Island—TSP
Rhode Island—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Rhode Island—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Rhode Island—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Rhode Island—Ozone (1-Hour Standard) 2
1 This date is January 16, 2001, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Rhode Island.
Rhode Island—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Rhode Island—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Rhode Island—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Rhode Island—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Rhode Island—NO 2 (1971 Annual Standard)
Rhode Island—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Rhode Island—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Rhode Island—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Includes any Indian country in each county or area, unless otherwise specified.
Rhode Island—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Rhode Island—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.341   South Carolina.
South Carolina—TSP
South Carolina—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
South Carolina—2010 Sulfur Dioxide NAAQS
[Primary]
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.
South Carolina—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
South Carolina—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in South Carolina except the Central Midlands-I (Columbia) and Appalachian-A (Greenville-Spartanburg-Anderson) areas where it is revoked effective April 15, 2009.
South Carolina—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
South Carolina—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
South Carolina—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
South Carolina—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
South Carolina—NO 2 (1971 Annual Standard)
South Carolina—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
South Carolina—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective April 15, 2008.
South Carolina—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA 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 Includes any Indian country in each county or area, unless otherwise specified.
South Carolina—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
South Carolina—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.342   South Dakota.
South Dakota—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
South Dakota—2010 Sulfur Dioxide NAAQS
[Primary]
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.
South Dakota—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
South Dakota—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in South Dakota.
South Dakota—PM-10
1 Denotes a single area designation for PSD baseline area purposes.
South Dakota—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
South Dakota—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
South Dakota—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
South Dakota—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
South Dakota—NO 2 (1971 Annual Standard)
South Dakota—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
South Dakota—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
South Dakota—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
South Dakota—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
South Dakota—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.343   Tennessee.
Tennessee—TSP
Tennessee—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Tennessee—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Tennessee—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Tennessee—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Tennessee except the Chattanooga, Johnson City-Kingsport-Bristol, and Nashville areas where it is revoked effective April 15, 2009.
Tennessee—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Tennessee—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, if any, except as otherwise specified.
2 This date is June 19, 2017, unless otherwise noted.
Tennessee—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Tennessee—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Tennessee—NO 2 (1971 Annual Standard)
Tennessee—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Tennessee—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective April 15, 2008.
Tennessee—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
Tennessee—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Tennessee—1978 Lead NAAQS
Tennessee—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.344   Texas.
Texas—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 EPA designation replaces State designation.
Texas—2010 Sulfur Dioxide NAAQS
[Primary]
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 A portion of Robertson County, specifically the area around the Optim Energy Twin Oaks Power Station, was designated Attainment/Unclassifiable on 9/12/2016. The remaining portion of Robertson County was designated on 4/30/2021.
Texas—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Texas—Ozone (1-Hour Standard) 1
1 The 1-hour ozone standard, designations and classifications are revoked effective June 15, 2005 for areas in Texas except the San Antonio area where they are revoked effective April 15, 2009.
2 The date at the time designations were revoked is October 18, 2000, unless otherwise noted.
3 The Dallas-Fort Worth Area was designated and classified as Moderate nonattainment on November 15, 1990. The area was classified as Serious nonattainment on March 20, 1998 and was so designated and classified when the 1-hour ozone standard, designations and classifications were revoked. The area has since attained the 1-hour ozone standard and met all the Clean Air Act criteria for redesignation. All 1-hour ozone standard anti-backsliding obligations for the area are terminated effective May 6, 2020.
4 The Houston-Galveston-Brazoria Area was designated and classified as “Severe-17” nonattainment on November 15, 1990 and was so designated and classified when the 1-hour ozone standard, designations and classifications were revoked. The area has since attained the 1-hour ozone standard and met all the Clean Air Act criteria for redesignation. All 1-hour ozone standard anti-backsliding obligations for the area are terminated effective March 16, 2020.
Texas-PM-10 Nonattainment Areas
1 This date is November 15, 1990, unless otherwise noted.
Texas—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Texas—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Texas—1997 Annual 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Texas—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Texas—NO 2 (1971 Annual Standard)
Texas—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Texas—1997 8-Hour Ozone NAAQS 1
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 The 1-hour ozone standard, designations and classifications are revoked effective June 15, 2005 for areas in Texas except the San Antonio area where they are revoked effective April 15, 2009.
2 Effective April 15, 2008.
3 Effective November 19, 2010.
4 The Houston-Galveston-Brazoria, TX area was designated nonattainment effective June 15, 2004 and was classified as “Severe-15” effective October 31, 2008. The area has since attained the 1997 8-hour ozone standard and met all the Clean Air Act criteria for redesignation. All 1997 8-hour ozone standard anti-backsliding obligations for the area are terminated effective March 16, 2020.
5 The Dallas-Fort Worth, TX area was designated and classified as a Moderate nonattainment area effective June 15, 2004. The area was classified as Serious nonattainment effective January 19, 2011. The area has since attained the 1997 ozone standard and met all the Clean Air Act criteria for redesignation. All 1997 8-hour ozone standard anti-backsliding obligations for the area are terminated effective May 6, 2020.
Texas—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
Texas—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Texas-1978 Lead NAAQS
1 This date is November 15, 1990, unless otherwise noted.
Texas—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.345   Utah.
Utah—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
1 EPA designation replaces State designation.
Utah—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Utah—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Utah—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Utah. The Salt Lake City area is a maintenance area for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Utah—PM-10
1 Denotes a single area designation for PSD baseline area purposes.
Utah—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Utah—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Utah—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Utah—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2034, unless otherwise noted.
Utah—NO 2 (1971 Annual Standard)
Utah—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Utah—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Utah—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes Indian country of the tribe listed in this table located in the identified area. Information pertaining to areas of Indian country in this table is intended for CAA 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.
Utah—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
3 The EPA is designating portions of the Uinta Basin as “nonattainment,” including both Tribal and State lands. The Ute Tribe has air quality planning jurisdiction in the areas of Indian country included in the Uinta Basin nonattainment area, while the State of Utah has air quality planning jurisdiction in the areas of State land included in the Uinta Basin nonattainment area.
Utah—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.346   Vermont.
Vermont—TSP
Vermont—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Vermont—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Vermont—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Vermont—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Vermont.
Vermont—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Vermont—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Vermont—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Vermont—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Vermont—NO 2 (1971 Annual Standard)
Vermont—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Vermont—PM10
Vermont—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Vermont—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 Includes any Indian country in each county or area, unless otherwise specified.
2 This date is July 20, 2012, unless otherwise noted.
Vermont—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 January 16, 2018, unless otherwise noted.
Vermont—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.347   Virginia.
Virginia—TSP
Virginia—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Virginia—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Virginia—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Virginia—Ozone (1-Hour Standard) 3
1 This date is October 18, 2000, unless otherwise noted.
2 This date is January 16, 2001.
3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Virginia except Northern Shenandoah Valley Region (Winchester City and Frederick County) and Roanoke area where it is revoked effective April 15, 2009.
Virginia—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
Virginia—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Virginia—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Virginia—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
Virginia—NO 2 (1971 Annual Standard)
Virginia—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Virginia—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective April 15, 2008.
3 November 22, 2004.
Virginia—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 This date is July 20, 2012, unless otherwise noted.
2 Excludes Indian country located in each area, unless otherwise noted.
3 Includes any Indian country in each county or area, unless otherwise specified.
4 Attainment date is extended to July 20, 2016.
Virginia—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Virginia—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.348   Washington.
Washington—TSP
Washington—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
Washington—2010 Sulfur Dioxide NAAQS
[Primary]
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.
Washington-Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
Washington—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Washington. The Portland-Vancouver AQMA and Seattle-Tacoma areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.
Washington—PM-10
Washington—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Washington—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
Washington—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
Washington—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2034, unless otherwise noted.
Washington—NO 2 (1971 Annual Standard)
Washington—NO 2
[2010 1-Hour standard]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
Washington—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
Washington—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 Includes any Indian country in each county or area, unless otherwise specified.
2 This date is July 20, 2012, unless otherwise noted.
Washington—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
Washington—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.
§ 81.349   West Virginia.
West Virginia—TSP
West Virginia—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
West Virginia—2010 Sulfur Dioxide NAAQS
[Primary]
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.
West Virginia—Carbon Monoxide
1 This date is November 15, 1990, unless otherwise noted.
2 The listed designation does not reflect EPA action under section 107(d)(4)(A). At the date of enactment of the Clean Air Act Amendments, Jefferson County, Ohio; Brooke County, West Virginia; and Hancock County, West Virginia, were designated Unclassifiable/Attainment by operation of law under section 107(d)(1)(C) of the Clean Air Act. However, these States and EPA are reviewing whether to confirm or reverse that designation under the process set out under section 107(d)(4)(A) and will publish a separate notice to that effect.
West Virginia—Ozone (1-Hour Standard) 2
1 This date is October 18, 2000, unless otherwise noted.
2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in West Virginia except the Eastern Pan Handle Region (Berkeley and Jefferson Counties) where it is revoked effective April 15, 2009.
West Virginia—PM-10
West Virginia—1997 Annual PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
West Virginia—2012 Annual PM 2.5 NAAQS
[Primary]
1 Includes areas of Indian country located in each county or area, except as otherwise specified.
2 This date is April 15, 2015, unless otherwise noted.
West Virginia—1997 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after January 5, 2005, unless otherwise noted.
West Virginia—2006 24-Hour PM 2.5 NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 30 days after November 13, 2009, unless otherwise noted.
2 This date is July 2, 2014, unless otherwise noted.
West Virginia—NO 2 (1971 Annual Standard)
West Virginia—NO 2 (2010 1-Hour Standard)
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is 90 days after October 31, 2011, unless otherwise noted.
West Virginia—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
a Includes Indian Country located in each county or area, except as otherwise specified.
1 This date is June 15, 2004, unless otherwise noted.
2 Effective April 15, 2008.
West Virginia—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
1 Includes any Indian country located in each county or area, unless otherwise noted.
2 This date is July 20, 2012, unless otherwise noted.
West Virginia—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
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 August 3, 2018, unless otherwise noted.
West Virginia—2008 Lead NAAQS
a Includes Indian Country located in each county or area, except as otherwise specified.
1 December 31, 2011 unless otherwise noted.