SIP Revisions and Other State Air Quality Plans
The tables below provide details on the status of recent DEEP State Implementation Plan (SIP) revisions and other State Air Quality Plans. EPA also maintains similar status tables for Infrastructure SIPs submitted by DEEP and regulations approved into Connecticut's SIP.
SIP Revisions
Federal Citation |
SIP Revisions |
Supporting Documents |
Status |
Date of Latest Action*
|
|
Clean Air Act Section 182 40 CFR 51.102 |
DEEP is proposing a revision to the CT SIP to include Consent Order No. 8383, issued to Algonquin Gas Transmission, LLC, which establishes emission standards that are determined to satisfy RACT for VOC pursuant to RCSA 22a-174-32(e)(1)(D) for the facility located at 252 Shunpike Road, Cromwell, Middlesex County, CT. Enclosures to this notice include: Consent Order No. 8383, Technical Support Document and appendices A-G, public notice, certification of public participation, hearing report, letters to the docket. | Submitted to EPA | 2024/12/10 | |
| Clean Air Act Section 177 | The Environmental Protection Agency (EPA) is approving a State Implementation Plan revision submitted by the State of Connecticut on December 14, 2015. Connecticut updated its motor vehicle emission regulations to adopt California’s Advanced Clean Car (ACC) I program that includes California’s low emission vehicle (LEV) III criteria pollutant standards and zero-emission vehicle (ZEV) sales requirements through the 2025 model year, and greenhouse gas (GHG) emissions standards that commence in the 2017 model year. Connecticut ensured that its regulations are identical to the California standards for which a waiver has been granted, as required by the Clean Air Act (CAA). | SIP Revision | EPA Approval | 2024/07/15 |
| Clean Air Act Sections 182 and 184 | Reasonably Available Control Measures and Reasonably Available Control Technology Analysis under the 2015 8-Hour Ozone National Ambient Air Quality Standard - Reclassification to Moderate Nonattainment for the Greater Connecticut Nonattainment Area | Final RACT SIP | Submitted to EPA | 2023/05/23 |
|
Clean Air Act Section 182 40 CFR 51.165 |
Certification of Adequacy of the Connecticut State Implementation Plan to Satisfy the Nonattainment New Source Review Requirements of the Clean Air Act for the 2015 8-Hour Ozone National Ambient Air Quality Standard Reclassification of the Greater Connecticut Nonattainment Area to Moderate Nonattainment | NNSR Certification | Submitted to EPA | 2023/05/23 |
| Clean Air Act Section 182(a)(3)(B) |
Emission Statement Certification for the 2015 Ozone National Ambient Air Quality Standard |
Final Emission Statement Certification | Submitted to EPA | 2023/05/23 |
| Clean Air Act, Sec. 182 & 184 | Final RACT SIP Revision for the Serious Designation for the 2008 Ozone NAAQS and the Marginal/Moderate Designations for the 2015 Ozone NAAQS | SIP Revision | Submitted to EPA | 2020/12/29 |
| 40 CFR 51.114 & 51.165 | Certification of Adequacy of the CT SIP to Satisfy the NNSR Requirements of the CAA for the 2008 8-Hour Ozone NAAQS Reclassification to Serious Nonattainment and the 2015 8-Hour Ozone NAAQS Initial Classification | NNSR Adequacy Demonstration | Submitted to EPA | 2020/12/29 |
|
Clean Air Act, Sec. 110(a)(2)
|
2015 Ozone NAAQS: Good Neighbor SIP
|
Submitted to EPA
|
2018/12/06
|
|
|
Clean Air Act, Sec. 110 (a)(1) & (2)
|
2015 Ozone NAAQS: Infrastructure SIP Revision
|
Submitted to EPA
|
2018/09/07
|
|
| Clean Air Act, Sec. 110(a)(1) & (2), 172 (b) & 182(b) | 1997 & 2008 Ozone NAAQS and 2012 Fine Particle NAAQS: Low Emission Vehicle SIP |
Latest SIP Revision (Attachment C) Previous EPA Approval |
2018/1/16 | |
| Clean Air Act, Sec. 172 (b) & 182(b) | 1997 and 2008 Ozone NAAQS: Attainment Demonstration for the Connecticut Portion of the NY-NJ-CT Nonattainment Area |
SIP Revision Approval Regarding the 1997 Standard |
2019/02/01 | |
| 40 CFR 51.1114 & 40 CFR 51.165 | 2008 Ozone NAAQS: NNSR Adequacy Determination | SIP Revision |
2018/03/19
|
|
| Clean Air Act, Sec. 172 (b) & 182(b) | 2008 Ozone NAAQS: Attainment Demonstration for the Greater Connecticut Nonattainment Area |
2019/02/01
|
||
| Clean Air Act, Sec. 110 & 184 | SIP Revision: Amendment of Municipal Waste Combustor Regulation | SIP Revision and attachments | Proposed approval | 2017/04/06 |
| 40 CFR 51.102 | SIP Revision: Removal of Obsolete Single-Source VOC RACT Orders |
2017/05/01
|
||
| 40 CFR 51.102 | Withdrawal: VOC RACT Order #8246 from SIP Submittal |
2017/05/01
|
||
|
Clean Air Act, Sec. 182(a)(1) and 172(c)(3)
|
2011 Periodic Emissions Inventory (PEI) | Cover letter to EPA 2011 PEI Certification of Public Review Process Response to Comments |
Submitted to EPA | 2016/03/09 |
| Clean Air Act, Sec. 110 (a)(1) & (2) | 2012 PM2.5 NAAQS: Infrastructure SIP Revision. | SIP Revision and Attachments |
2018/08/31
|
|
| Clean Air Act, Sec. 202(a)(6) and 40 CFR 51.126 | SIP Revision Concerning the Transfer and Dispensing of Gasoline (Stage I/Stage II Vapor Recovery) |
2017/12/15
|
||
| 40 CFR 51.308(g) | 2014 Regional Haze Five-Year Progress Report | Five-Year Progress Report |
Submitted to EPA
|
2015/07/13
|
| Clean Air Act, Sec. 110 (a)(1) & (2) | 2008 Ozone NAAQS: Infrastructure Transport Requirements | Good Neighbor SIP |
2015/06/16
|
|
| Clean Air Act, Sec. 182 & 184 | 2008 Ozone NAAQS: Reasonably Available Control Technology Analysis |
|
2017/08/30
|
|
| Clean Air Act, Sec. 110 (a) (1) & (2) | 2010 SO2 NAAQS: Infrastructure SIP Revision | Final SIP Submittal | 2018/08/31 | |
| Clean Air Act, Sec. 110 (a) (1) & (2) | 2010 NO2 NAAQS: Infrastructure SIP Revision | Final SIP Submittal | EPA Approval | 2018/08/31 |
| Clean Air Act, Sec. 110 (a) (1) & (2) | 2008 Ozone NAAQS: Infrastructure SIP Revision | Final SIP Submittal | EPA Approval | 2018/08/31 |
| 40 CFR 51 | Repeal of two Air Quality Regulations | SIP Revision | Submitted to EPA | 2012/11/21 |
| Clean Air Act Section 183 | Reasonably Available Control Technology Update | Control Measures Guidance Documents | Submitted to EPA | 2012/11/21 |
| 50 CFR Part 51.102 | Final Submission CT SIP amendment | Submitted to EPA | 2012/11/01 | |
| Clean Air Act, Sec. 110 (a) (1) & (2) | 1997 PM2.5 NAAQS: Infrastructure SIP | Final SIP Submittal | EPA Approval | 2016/07/05 |
| Clean Air Act, Sec. 110 (a) (1) & (2) | SIP Revision: NSR revision with regard to PM2.5 | Letter to EPA with NSR Revisions |
Submitted to EPA
|
2012/10/09
|
| 40 CFR 51, Appendix V, Section 2. 1(a) |
Notification to Nearby States in Connecticut's Prevention of Significant Deterioration Permit Program
Revisions to RCSA section 22a-174-2a(b)(5) and (6)
|
Final SIP Submittal | Submitted to EPA | 2012/09/27 |
| Clean Air Act Sections 107(d)(3)(E) and 175A | 1997 and 2006 Fine Particulate Matter (PM2.5) NAAQS: Redesignation Request and Maintenance SIP |
Information provided within SIP Revision link to the left
|
Submitted to EPA
|
2012/06/22
|
|
40 CFR 51.102 &
R.C.S.A. Sec. 22a-174-22 & 32
|
Final Submission NOx & VOC Orders | Submission Package (PDF) |
Submitted to EPA
|
2011/11/31
|
| Clean Air Act Section 110(a)(1) and (2) | 2008 Lead NAAQS: Adequacy Determination of the Connecticut State Implementation Plan |
Information provided within SIP Revision link to the left
|
EPA Approval | 2018/08/31 |
| EPA Control Techniques Guidelines | Control Measures Guidance Documents | Submitted to EPA | 2010/04/29 | |
| 40 CFR 51.308(b) & (e) | EPA Approval | 2014/07/10 | ||
|
Clean Air Act, Sec. 172(c) & 110 (a)(1)&(2)
|
Information provided within SIP Revision link to the left
|
Submitted to EPA
|
2008/11/18 | |
| Clean Air Act, Sec. 172 (c) & 182(a)(3) | 2002 Periodic Ozone and Carbon Monoxide Emissions Inventory | Information provided within SIP Revision link to the left |
Submitted to EPA
|
2008/02/01 |
| Clean Air Act, Sec. 172 (b) & 182(b) | 1997 Ozone NAAQS: Attainment Demonstration | Final SIP Revision | EPA Approval | 2018/05/25 |
| Clean Air Act, Sec. 110 (a) (1) & (2) | 1997 Ozone NAAQS: Adequacy Determination of the Connecticut State Implementation Plan | Information provided within SIP Revision link to the left | 2011/09/06 | |
|
40 CFR 51 Subpart S
|
2007 Inspection and Maintenance Program SIP Revision | Information provided within SIP Revision link to the left | EPA Approval | 2008/12/05 |
|
40 CFR
51.123(a)(2) & (ee)
|
(PDF, 8.22 MB)
|
(PDF)
(PDF)
(PDF)
(PDF)
2012 Allocations Round 1 (PDF)
2013 Allocations Round 1 (PDF)
2013 Allocations Round 2 (PDF)
2014 Allocations Round 1 (PDF)
2015 Allocations Round 1 (PDF)
|
2008/01/24 | |
| Clean Air Act, Sec. 110(a)(2)(D) | Transport SIP Revision | EPA Approval | 2008/06/06 | |
| 69 FR 40028 & 70 FR 24280 | Final Early PM2.5 Transportation Conformity Emission Budgets SIP Revision (PDF) |
(PDF)
|
EPA Approval | 2007/06/20 |
|
40 CFR 51.102 &
R.C.S.A. Sec. 22a-174-32
|
Final Submission VOC RACT Orders | Submission Package (PDF, 239MB) | Submitted to EPA | 2007/06/23 |
| 40 CFR 51.102 |
CT- NOx and VOC RACT
|
Submitted to EPA | 2006/12/06 | |
|
40 CFR 51.102
|
CT- Revisions to Record Keeping, Monitoring and Visible Emissions Rule
|
Submitted to EPA | 2004/12/01 | |
|
40 CFR 51.102
|
CT- Single Source NOx Credits for RACT
|
SIP 12-02-2002 (PDF)
|
Submitted to EPA | 2002/12/02 |
*Final actions are listed by effective date. Proposals and submittals are listed by date of action.
Other State Air Quality Plans
Federal Citation |
Plan Topic |
Supporting Documents |
Status |
|---|---|---|---|
| 40 CFR 58.10 | Connecticut Annual Air Monitoring Plans |
Submitted to EPA on July 1 each year.
|
|
| Clean Air Act Sec. 129 | Revision to Connecticut State Municipal Waste Combustor Plan |
Rule Amendment originally submitted to EPA August 21, 2008, subsequent submission February 27, 2009. EPA approval pending.
|
|
|
40 CFR 51.102 &
40 CFR 60.24(h)
|
Submitted to EPA
November 2, 2007
|
Content Last Updated on December 11, 2024