Document ID: EPA-R01-OAR-2014-0842-0002
Agency: epa
Document Type: Rule
Title: Air Quality State Implementation Plans; Approvals and Promulgations: Connecticut; Prevention of Significant Deterioration  and Nonattainment New Source Review
Posted Date: 2015-07-24T04:00Z

[Federal Register Volume 80, Number 142 (Friday, July 24, 2015)]
[Rules and Regulations]
[Pages 43960-43964]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-17664]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R01-OAR-2014-0842; A-1-FRL-9927-32-Region 1]

Approval and Promulgation of Air Quality Implementation Plans; 
Connecticut; Prevention of Significant Deterioration and Nonattainment 
New Source Review

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

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SUMMARY: The Environmental Protection Agency (EPA) is taking direct 
final action to fully approve revisions to the State of Connecticut's 
State Implementation Plan (SIP) relating to regulation of fine 
particulate matter (PM2.5) emissions within the context of 
EPA's Prevention of Significant Deterioration (PSD) regulations. EPA is 
also approving clarifications to the applicability section of 
Connecticut's Nonattainment New Source Review (NNSR) regulations. These 
revisions will be part of Connecticut's major stationary source 
preconstruction permitting programs, and are intended to align 
Connecticut's regulations with the federal PSD and NNSR regulations. 
This action is being taken in accordance with the Clean Air Act (CAA).

DATES: This direct final rule will be effective September 22, 2015, 
unless EPA receives adverse comments by August 24, 2015. If adverse 
comments are received, EPA will publish a timely withdrawal of the 
direct final rule in the Federal Register informing the public that the 
rule will not take effect.

ADDRESSES: Submit your comments, identified by Docket ID Number EPA-
R01-OAR-2014-0842 by one of the following methods:
    1. www.regulations.gov: Follow the on-line instructions for 
submitting comments.
    2. Email: dahl.donald@epa.gov
    3. Fax: (617) 918-0657.
    4. Mail: ``Docket Identification Number EPA-R01-OAR-2014-0842'', 
Donald Dahl, U.S. Environmental Protection Agency, EPA New England 
Regional Office, Office of Ecosystem Protection, Air Permits, Toxics, 
and Indoor Programs Unit, 5 Post Office Square--Suite 100, (Mail code 
OEP05-2), Boston, MA 02109-3912.
    5. Hand Delivery or Courier: Deliver your comments to: Donald Dahl, 
U.S. Environmental Protection Agency, EPA New England Regional Office, 
Office of Ecosystem Protection, Air Permits, Toxics, and Indoor 
Programs Unit, 5 Post Office Square--Suite 100 (Mail code OEP05-2), 
Boston, MA 02109-3912. Such deliveries are only accepted during the 
Regional Office's normal hours of operation. The Regional Office's 
official hours of business are Monday through Friday, 8:30 a.m. to 4:30 
p.m., excluding legal holidays.
    Instructions: Direct your comments to Docket ID No. EPA-R01-OAR-
2014-0842. EPA's policy is that all comments received will be included 
in the public docket without change and may be made available online at 
www.regulations.gov, including any personal information provided, 
unless the comment includes information claimed to be Confidential 
Business Information (CBI) or other information whose disclosure is 
restricted by statute. Do not submit through www.regulations.gov, or 
email, information that you consider to be CBI or otherwise protected. 
The www.regulations.gov Web site is an ``anonymous access'' system, 
which means EPA will not know your identity or contact information 
unless you provide it in the body of your comment. If you send an email 
comment directly to EPA without going through www.regulations.gov your 
email address will be automatically captured and included as part of 
the comment that is placed in the public docket and made available on 
the Internet. If you submit an electronic comment, EPA recommends that 
you include your name and other contact information in the body of your 
comment and with any disk or CD-ROM you submit. If EPA cannot read your 
comment due to technical difficulties and cannot contact you for 
clarification, EPA may not be able to consider your comment. Electronic 
files should avoid the use of special characters, any form of 
encryption, and be free of any defects or viruses.
    Docket: All documents in the electronic docket are listed in the 
www.regulations.gov index. Although listed in the index, some 
information may not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material,

[[Page 43961]]

is not placed on the Internet and will be publicly available only in 
hard copy form. Publicly available docket materials are available 
either electronically in www.regulations.gov or in hard copy at U.S. 
Environmental Protection Agency, EPA New England Regional Office, 
Office of Ecosystem Protection, 5 Post Office Square--Suite 100, 
Boston, MA. EPA requests that if at all possible, you contact the 
contact listed in the FOR FURTHER INFORMATION CONTACT section to 
schedule your inspection. The Regional Office's official hours of 
business are Monday through Friday, 8:30 a.m. to 4:30 p.m., excluding 
legal holidays.
    In addition, a copy of the state submittal is also available for 
public inspection during normal business hours, by appointment at the 
State Air Agency; the Bureau of Air Management, Department of Energy 
and Environmental Protection, State Office Building, 79 Elm Street, 
Hartford, CT 06106-1630.

FOR FURTHER INFORMATION CONTACT: Donald Dahl, U.S. Environmental 
Protection Agency, EPA New England Regional Office, Office of Ecosystem 
Protection, Air Permits, Toxics, and Indoor Programs Unit, 5 Post 
Office Square--Suite 100, (Mail code OEP05-2), Boston, MA 02109-3912. 
Mr. Dahl's telephone number is (617) 918-1657; email address: 
dahl.donald@epa.gov.

SUPPLEMENTARY INFORMATION: 
    Throughout this document whenever ``we,'' ``us,'' or ``our'' is 
used, we mean EPA.
    Organization of this document. The following outline is provided to 
aid in locating information in this preamble.

Table of Contents

I. What is the background for EPA's action?
II. What is EPA's analysis of Connecticut's proposed SIP revisions?
    A. Connecticut's September 27, 2012 SIP Submission
    B. Connecticut's October 9, 2012 SIP Submission
III. Final Action
IV. Incorporation by Reference
V. Statutory and Executive Order Reviews

I. What is the background for EPA's action?

    On September 27, 2012 and October 9, 2012, the State of 
Connecticut's Department of Energy and Environmental Protection (CT 
DEEP) submitted to EPA proposed formal revisions to Connecticut's State 
Implementation Plan (SIP). The submitted SIP revisions consist of: (1) 
Amendments to Connecticut's PSD regulations and tables to address 
PM2.5 emissions; (2) a notice requirement to be provided to 
states affected by emissions from major new or modified construction; 
(3) one modified definition relating to the State's PSD program; (4) 
language amending an existing section of the State's NNSR SIP 
regulations for purposes of clarification; and (5) the addition of 
PM2.5 in an emissions offset provision of the State's NNSR 
regulations. Each of these revisions relates to requirements contained 
in EPA's regulations codified at either 40 CFR 51.165 (NNSR) or 51.166 
(PSD).

II. What is EPA's analysis of Connecticut's proposed SIP revisions?

    Connecticut is currently a SIP-approved state for all CAA major 
stationary source preconstruction permitting programs, PSD and NNSR. 
EPA's analysis of Connecticut's September 27, 2012 and October 9, 2012 
submissions in relation to those federal programs appears below.

A. Connecticut's September 27, 2012 SIP Submission

    Connecticut's submission included sections 22a-174-2a(b)(5)(E) and 
(b)(6) of its air program regulations. Those provisions clarify when 
and which entities will receive from the CT DEEP a copy of the notice 
of the State's ``tentative determination'' (or draft major stationary 
source preconstruction permit). More specifically, Connecticut's SIP-
approved regulations had not previously contained a provision requiring 
notice (prior to issuance of a PSD permit) to states whose air quality 
may be affected by emissions from a major new or modified source. EPA 
identified this missing requirement when determining whether 
Connecticut's SIP met the affected state notification requirement in 
CAA section 110(a)(2)(D)(ii) and 40 CFR 51.166(q)(2)(iv). On October 
16, 2012, EPA conditionally approved Connecticut's infrastructure SIP 
for the 1997 and 2006 PM2.5 standards. See 77 FR 63228. The 
portion of the October 16, 2012 conditional approval addressed by the 
State's September 27, 2012 SIP revision involved the requirement that 
Connecticut notify other affected states prior to issuing a PSD permit.
    EPA has analyzed the submitted provisions and has determined that 
they are consistent with EPA's regulations, including the requirement 
at 40 CFR 51.166(q)(2)(iv) applicable to affected state notice. 
Therefore, EPA is fully approving the revisions into Connecticut's SIP.

B. Connecticut's October 9, 2012 SIP Submission

    Connecticut's submission addresses PM2.5 emissions 
requirements for PSD permitting by adding PM2.5 to several 
sections of the State's SIP regulations. These sections are Section 
22a-174-1 (definition of ``Major source baseline date'') and Tables 
3a(i)-1 (Ambient Impact \1\), 3a(k)-1 (Significant Emission Rate 
Thresholds) and 3a(k)-2 (PSD Increment) in Section 22a-174-3a.
---------------------------------------------------------------------------

    \1\ The values contained in Connecticut's Ambient Impact table 
correspond to EPA's Significant Impact Levels (SILs).
---------------------------------------------------------------------------

    Connecticut's SIP-approved regulations had not previously contained 
provisions that addressed PM2.5 requirements for PSD 
permitting. EPA identified these missing requirements when determining 
whether Connecticut's infrastructure SIP met the requirements of a 
fully approved PSD program set forth in CAA sections 110(a)(2)(C), 
(D)(i)(II) and (J). On October 16, 2012, EPA conditionally approved 
Connecticut's infrastructure SIP for the 1997 and 2006 PM2.5 
standards. See 77 FR 63228. The portion of EPA's October 16, 2012 
conditional approval addressed by the State's October 9, 2012 SIP 
revision submission involved establishing a Significant Emission Rate 
Threshold for PM2.5 emissions and precursors to 
PM2.5, PM2.5 increment, and adding 
PM2.5 to the definition of ``Major source baseline date.''
    The October 9, 2012 submission also included revisions to 
Connecticut's NNSR regulations. These revisions are to Section 22a-174-
3a(l)(1) (applicability), discussed in more detail below, and Section 
22a-174-3a(l)(4)(B)(iv), adding PM2.5 to a list of 
pollutants relevant to emissions offsets. We note, however, that 
Connecticut currently does not have any PM2.5 nonattainment 
areas.
    In EPA's ``Implementation of the New Source Review (NSR) Program 
for Particulate Matter Less Than 2.5 Micrometers,'' Final Rule, 73 FR 
28321 (May 16, 2008), EPA established a new significance level for 
PM2.5 emissions. In EPA's ``Prevention of Significant 
Deterioration (PSD) for Particulate Matter Less Than 2.5 Micrometers 
(PM2.5)--Increments, Significant Impact Levels (SILs) and 
Significant Monitoring Concentration (SMC),'' Final Rule, 75 FR 64864 
(October 20, 2010), EPA established increments, SILs, and SMCs for 
PM2.5 emissions. Both of these EPA rules required 
Connecticut to amend their state regulations for permitting major new 
and modified major

[[Page 43962]]

stationary sources in relation to the PM2.5 NAAQS.
    On January 22, 2013, the United States Court of Appeals for the 
District of Columbia Circuit granted a request from EPA to vacate and 
remand to EPA the portions of the PM2.5 PSD Increment-SILs-
SMC Rule (40 CFR 51.166(k)(2) and 40 CFR 52.21(k)(2)) addressing the 
SILs for PM2.5 so that EPA could voluntarily correct an 
error in these provisions. See Sierra Club v. EPA, 705 F.3d 458, 463-66 
(D.C. Cir. 2013). The court declined to vacate the SILs provision at 40 
CFR 51.165(b)(2) that did not contain that same error. Id. The Court 
also vacated the part of the PM2.5 PSD Increment-SILs-SMC 
Rule establishing the PM2.5 SMC for the PSD permitting 
program, finding that EPA was precluded from using the PM2.5 
SMC to exempt permit applicants from the statutory requirement to 
compile and submit preconstruction monitoring data as part of a 
complete PSD application. Id. at 469. On December 9, 2013, EPA issued a 
final rulemaking to remove the vacated PM2.5 SILs provisions 
and revising the existing PM2.5 SMC listed in 40 CFR 
51.166(i)(5)(i)(c) to zero micrograms per cubic meter (0 [mu]g/m\3\). 
See 78 FR 73698.
    Connecticut has never adopted an SMC for PM2.5 emissions 
pursuant to 40 CFR 51.166(i)(5), which was vacated by the United States 
Court of Appeals for the District of Columbia Circuit, because the 
provision is an optional element of a state's program and Connecticut 
chose not to include that element in its program. Connecticut's 
regulations also do not contain provisions that address the SIL 
provisions at 40 CFR 51.166(k)(2) vacated by the Court.
    EPA has analyzed the above-described amended sections of 
Connecticut's regulations and has determined those sections are 
consistent with the requirements codified at 40 CFR 51.166, and 
therefore should be approved into Connecticut's SIP.
    Connecticut's October 9, 2012 submission also included amendments 
to certain sections of the State's NNSR regulations. One change 
affected section 22a-174-3a(l)(1) of Connecticut's regulations and was 
adopted to clarify that the applicability of the State's NNSR 
requirements is triggered in designated nonattainment areas by 
emissions of the pollutant for which the area is designated 
nonattainment.
    As noted earlier, Connecticut also added PM2.5 emissions 
to a list of pollutants in section 22a-174-3a(l)(4)(B)(iv), which 
addresses emission reduction credits. As also noted earlier, however, 
Connecticut currently does not have any PM2.5 nonattainment 
areas.
    EPA has analyzed the above-described amended sections of 
Connecticut's regulations and has determined those sections are 
consistent with the requirements codified at 40 CFR 51.165, and 
therefore should be approved into Connecticut's SIP.
    The State's October 9, 2012 submission also included an amendment 
to Table 3a(i)-1 of section 22a-174-3a, adding values for 
PM2.5 Ambient Impact (these values are equivalent 
conceptually to EPA's SILs). The State's October 9, 2012 submission 
also included section 22a-174-3a(l)(l)(C), which requires sources to 
undergo NNSR and permitting even though they are located in attainment 
areas or areas that are unclassifiable, but only if the allowable 
emissions from such sources would cause or exacerbate a violation of a 
NAAQS in an adjacent nonattainment area. EPA is approving these two 
revisions to Connecticut's SIP. In doing so, however, we note that 
section 22a-174-3a(l)(l)(C) contains a reference to Table 3a(i)-1 of 
section 22a-174-3a (the State's Ambient Impact values) and specifies 
that if the modeled ambient impacts from a source's allowable emissions 
would be below those impact values the NNSR permitting requirements of 
section 22a-174-3a(l)(l)(C) would then not apply. EPA interprets this 
provision to only apply in the state's NNSR permitting program to 
determine whether a source locating in an attainment or unclassifiable 
area will cause or exacerbate a violation of the NAAQS in an adjacent 
nonattainment area and thus be subject to NNSR review under the 
particular requirements of the Connecticut SIP. As this provision only 
appears in the state's NNSR permitting rules, EPA does not interpret 
this provision to apply in Connecticut's PSD permitting program to 
determine whether a proposed new or modified source would cause or 
contribute to a violation of the NAAQS anywhere. Thus, this narrowly 
drafted NNSR applicability provision and the manner in which 
Connecticut's regulation applies the ambient impact values from Table 
3a(i)-1 in this provision are not in conflict with the DC Circuit 
decision in Sierra Club v. EPA that vacated EPA's SIL provision at 40 
CFR 51.166(k)(2). EPA views Section 22a-174-3a(l)(l)(C) as a NNSR 
applicability provision that has no effect on Connecticut's PSD 
permitting program, which still requires that a proposed new or 
modified source locating in an attainment or unclassifiable area to 
make an appropriate demonstration that it does not cause or contribute 
to a violation of any NAAQS or increment. See Section 22a-174-3a(k) of 
CT DEEP's regulations.

III. Final Action

    Pursuant to section 110 of the CAA, EPA is fully approving 
Connecticut's September 27, 2012 and October 9, 2012 SIP revisions. The 
EPA is publishing this action without prior proposal because the Agency 
views this as a noncontroversial amendment and anticipates no adverse 
comments. However, in the proposed rules section of this Federal 
Register publication, EPA is publishing a separate document that will 
serve as the proposal to approve the SIP revisions should relevant 
adverse comments be filed. This rule will be effective September 22, 
2015 without further notice unless the Agency receives relevant adverse 
comments by August 24, 2015.
    If the EPA receives such comments, then EPA will publish a notice 
withdrawing today's final rule and informing the public that the rule 
will not take effect. All public comments received will then be 
addressed in a subsequent final rule based on the proposed rule. The 
EPA will not institute a second comment period on the proposed rule. 
All parties interested in commenting on the proposed rule should do so 
at this time. If no such comments are received, the public is advised 
that this rule will be effective on September 22, 2015 and no further 
action will be taken on the proposed rule. Please note that if EPA 
receives adverse comment on an amendment, paragraph, or section of this 
rule and if that provision may be severed from the remainder of the 
rule, EPA may adopt as final those provisions of the rule that are not 
the subject of an adverse comment.

IV. Incorporation by Reference

    In this rule, the EPA is finalizing regulatory text that includes 
incorporation by reference. In accordance with requirements of 1 CFR 
51.5, the EPA is finalizing the incorporation by reference of the State 
of Connecticut Department of Energy and Environmental Protection 
Regulations described in the amendments to 40 CFR part 52 set forth 
below. The EPA has made, and will continue to make, these documents 
generally available electronically through www.regulations.gov and/or 
in hard copy at the appropriate EPA office (see the ADDRESSES section 
of this preamble for more information).

[[Page 43963]]

V. Statutory and Executive Order Reviews

    Under the Clean Air Act, the Administrator is required to approve a 
SIP submission that complies with the provisions of the Act and 
applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). 
Thus, in reviewing SIP submissions, EPA's role is to approve state 
choices, provided that they meet the criteria of the Clean Air Act. 
Accordingly, this action merely approves state law as meeting Federal 
requirements and does not impose additional requirements beyond those 
imposed by state law. For that reason, this action:
     Is not a significant regulatory action subject to review 
by the Office of Management and Budget under Executive Orders 12866 (58 
FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 2011);
     does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     does not have Federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the Clean Air Act; and
     does not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    In addition, the SIP is not approved to apply on any Indian 
reservation land or in any other area where EPA or an Indian tribe has 
demonstrated that a tribe has jurisdiction. In those areas of Indian 
country, the rule does not have tribal implications and will not impose 
substantial direct costs on tribal governments or preempt tribal law as 
specified by Executive Order 13175 (65 FR 67249, November 9, 2000).
    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the Congress and to the Comptroller General of the 
United States. EPA will submit a report containing this action and 
other required information to the U.S. Senate, the U.S. House of 
Representatives, and the Comptroller General of the United States prior 
to publication of the rule in the Federal Register. A major rule cannot 
take effect until 60 days after it is published in the Federal 
Register. This action is not a ``major rule'' as defined by 5 U.S.C. 
804(2).
    Under section 307(b)(1) of the Clean Air Act, petitions for 
judicial review of this action must be filed in the United States Court 
of Appeals for the appropriate circuit by September 22, 2015. Filing a 
petition for reconsideration by the Administrator of this final rule 
does not affect the finality of this action for the purposes of 
judicial review nor does it extend the time within which a petition for 
judicial review may be filed, and shall not postpone the effectiveness 
of such rule or action. Parties with objections to this direct final 
rule are encouraged to file a comment in response to the parallel 
notice of proposed rulemaking for this action published in the proposed 
rules section of today's Federal Register, rather than file an 
immediate petition for judicial review of this direct final rule, so 
that EPA can withdraw this direct final rule and address the comment in 
the proposed rulemaking. This action may not be challenged later in 
proceedings to enforce its requirements. (See section 307(b)(2).)

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Carbon monoxide, 
Incorporation by reference, Intergovernmental relations, Lead, Nitrogen 
dioxide, Ozone, Particulate matter, Reporting and recordkeeping, Sulfur 
oxides, Volatile organic compounds.

    Dated: April 20, 2015.
H. Curtis Spalding,
Regional Administrator, EPA New England.

    Part 52 of chapter I, title 40 of the Code of Federal Regulations 
is amended as follows:

PART 52--[AMENDED]

0
1. The authority citation for part 52 continues to read as follows:

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

Subpart H--Connecticut

0
2. Section 52.370 is amended by adding paragraphs (c)(107) and (108) to 
read as follows:

Sec.  52.370  Identification of plan

* * * * *
    (c) * * *
    (107) Revisions to the State Implementation Plan submitted by the 
Connecticut Department of Energy and Environmental Protection on 
September 27, 2012.
    (i) Incorporation by reference.
    (A) Regulations of Connecticut State Agencies Section 22a-174-
2a(b)(5) introductory text and Section 22a-174-2a(b)(5)(E), as 
published in the Connecticut Law Journal on October 23, 2012, effective 
September 10, 2012.
    (B) Regulations of Connecticut State Agencies Section 22a-174-
2a(b)(6), as published in the Connecticut Law Journal on October 23, 
2012, effective September 10, 2012.
    (108) Revisions to the State Implementation Plan submitted by the 
Connecticut Department of Energy and Environmental Protection on 
October 9, 2012.
    (i) Incorporation by reference.
    (A) Regulations of Connecticut State Agencies Section 22a-174-
1(62), as published in the Connecticut Law Journal on October 16, 2012, 
effective September 10, 2012.
    (B) Regulations of Connecticut State Agencies Section 22a-174-
3a(i), Table 3a(i)-1, published in the Connecticut Law Journal on 
October 16, 2012, effective September 10, 2012.
    (C) Regulations of Connecticut State Agencies revisions to Section 
22a-174-3a(k), Table 3a(k)-1, published in the Connecticut Law Journal 
on October 16, 2012, effective September 10, 2012.
    (D) Regulations of Connecticut State Agencies revisions to Section 
22a-174-3a(k), Table 3a(k)-2, published in the Connecticut Law Journal 
on October 16, 2012, effective September 10, 2012.
    (E) Regulations of Connecticut State Agencies revisions to Section 
22a-174-3a (l)(1), published in the Connecticut Law Journal on October 
16, 2012, effective September 10, 2012.
    (F) Regulations of Connecticut State Agencies revisions to Section 
22a-174-3a(l)(4)(B) introductory text and Section 22a-174-
3a(l)(4)(B)(iv), published in the Connecticut Law Journal on October 
16, 2012, effective September 10, 2012.

[[Page 43964]]

0
3. In Sec.  52.385, Table 52.385 is amended by adding new entries to 
existing state citations for 22a-174-1, 22a-174-2a, and 22a-174-3a to 
read as follows:

Sec.  52.385  EPA-approved Connecticut regulations.

* * * * *

                                                         Table 52.385--EPA-Approved Regulations
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                 Dates
    Connecticut  State                             --------------------------------     Federal Register         Section
         citation               Title/subject        Date adopted    Date approved          citation             52.370          Comments/description
                                                       by State         by EPA
--------------------------------------------------------------------------------------------------------------------------------------------------------
 
                                                                      * * * * * * *
22a-174-1................  Definitions............       9/10/2012       7/24/2015  [Insert Federal                (c)(108)  Modified definition of
                                                                                     Register citation].                      ``major source baseline
                                                                                                                              date'' for purposes of
                                                                                                                              adding PM2.5.
 
                                                                      * * * * * * *
22a-174-2a...............  Procedural Requirements       9/10/2012       7/24/2015  [Insert Federal                (c)(107)  Only sections 22a-174-
                            for New Source Review                                    Register citation].                      2a(b)(5)(E) and (b)(6) are
                            and Title V Permitting.                                                                           being approved.
 
                                                                      * * * * * * *
22a-174-3a...............  Permit to Construct and       9/10/2012       7/24/2015  [Insert Federal                (c)(108)  Added Ambient Impact values
                            Operate Stationary                                       Register citation].                      for PM2.5 in Table 3a(i)-
                            Sources.                                                                                          1, Significant Emission
                                                                                                                              Rate Thresholds for PM2.5
                                                                                                                              emissions and its
                                                                                                                              precursors in Table 3a(k)-
                                                                                                                              1, PM2.5 increment added
                                                                                                                              to Table 3a(k)-2, and
                                                                                                                              PM2.5 added to section 22a-
                                                                                                                              174-3a(l)(4)(B)(iv).
                                                                                                                              Revised section 22a-174-
                                                                                                                              3a(l)(1).
 
                                                                      * * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------

[FR Doc. 2015-17664 Filed 7-23-15; 8:45 am]
 BILLING CODE 6560-50-P