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State Implementation Plans and State Plans

National Ambient Air Quality Standards (NAAQS) are set by EPA, through the Clean Air Act (CAA), for six principle pollutants considered harmful to public health and the environment. Those pollutants are:

  • ozone
  • particulate matter
  • sulfur dioxide
  • nitrogen dioxide
  • carbon monoxide, and
  • lead

A State Implementation Plan (SIP) is a collection of regulations and documents used by the state to reduce air pollution in areas that do not meet the NAAQS. DEC solicits comments from the public on all proposed SIPs before submitting them to EPA for approval. EPA maintains a Status of SIP Required Elements for New York Designated Areas (leaves DEC website).

Most recent DEC SIP-related actions are available below. Please contact us for additional information.

Carbon Monoxide
Document DEC Action Date EPA Action
(links go to Federal Register website)
NY Metropolitan Area Carbon Monoxide Limited Maintenance Plan for 2012-2022 Submitted 5/9/2013 Final: 79 FR 31045
Haze
Document DEC Action Date EPA Action
(links go to Federal Register website)
NYS Implementation Plan Revision for Regional Haze: Second Implementation Period Submitted 5/8/2020 Pending
Regional Haze Five-Year Progress Report for 2010-2015 Submitted 6/16/2015 Final: 82 FR 45499
NYS Implementation Plan for Regional Haze Submitted 3/15/2010 Final: 77 FR 51915
Nitrogen Dioxide
Document DEC Action Date EPA Action
(links go to Federal Register website)
NYS Implementation Plan for the Infrastructure Assessment for Nitrogen Dioxide Submitted 5/8/2013 Final: 79 FR 54617
Ozone
Document DEC Action Date EPA Action
(links go to Federal Register website)
Draft Ozone (2015 8-Hour NAAQS) Reasonably Available Control Technology (RACT) Demonstration for NYS Proposed 7/15/2020 N/A
Proposed 2008 Ozone Transport SIP Supplement Submitted 9/25/2018 Pending
Proposed 2015 Ozone Infrastructure SIP Submitted 9/25/2018 Pending
Amendment 7/10/2019 Pending
Section 126(b) Petition on Interstate Pollution Transport Submitted 3/12/2018 Notice of Final Action (Denial) (84 FR 56058)

Related: Court Vacatur/Remand of EPA Denial (July 14, 2020)(PDF)
Ozone (2008 8-Hour NAAQS) Reasonably Available Control Technology (RACT) Demonstration for NY Metro Area Submitted 11/10/2017 Pending
Ozone (2008 8-Hour NAAQS) Attainment Demonstration for NY Metro Area Submitted 11/10/2017 Pending
Ozone (2008 8-Hour NAAQS) Reasonably Available Control Technology (RACT) Demonstration for New York State Submitted 12/22/2014 Final Rule (Partial/Conditional Approval): 82 FR 58342
Part 220, Portland Cement Plants and Glass Plants - RACT Determinations Submitted 12/18/2013 Pending
Ozone Transport Region Expansion Petition Submitted 12/9/2013 Final (Denial): 82 FR 51238
NYS Implementation Plan for the Infrastructure Assessment for Ozone Submitted 4/4/2013 Final (Partial Approval): 81 FR 95047
Final (Partial Approval): 84 FR 54502
Part 230: Gasoline Dispensing sites and Transportation Vehicles - RACT Variances Submitted 1/31/2011 EPA Letter (9/19/2019)
EPA Letter (11/5/2019)
DEC Letter (5/7/2020)
EPA Letter (5/21/2020)
Single-Source State Implementation Plan Revisions, RACT Determinations (2010) Submitted 8/30/2010
Single-Source State Implementation Plan Revisions, RACT Determinations (2008) Submitted 9/16/2008
Ozone (1997 8-Hour NAAQS) Attainment Demonstration for NY Metro Area Submitted 2/8/2008 Final: 78 FR 9596
Lead
Document DEC Action Date EPA Action
(links go to Federal Register website)
NYS Implementation Plan for the Infrastructure Assessment for Lead-Supplemental Information Submitted 2/24/2012 Final (Partial Approval): 81 FR 95047
Final (Partial Approval Delay): 82 FR 8499
NYS Implementation Plan for the Infrastructure Assessment for Lead Submitted 10/13/2011 Final (Partial Approval): 80 FR 30939
SO2
Document DEC Action Date EPA Action
(links go to Federal Register website)
40 CFR 51.1205(b) Report - Sulfur Dioxide 2010 Primary NAAQS - July 2020 Proposed 9/16/2020 N/A
40 CFR 51.1205(b) Report - Sulfur Dioxide 2010 Primary NAAQS - January 2020 Submitted 1/13/2020 Pending
Revised Designation Recommendation for the 2010 Sulfur Dioxide NAAQS - EPA Round 3 Submitted 1/4/2017 Final: 83 FR 1098
Large Source Air Quality Characterization List - SO2 DRR Information 1/6/2016 N/A
Revised Designation Recommendation for the 2010 Sulfur Dioxide NAAQS - EPA Round 2 Submitted 9/18/2015 Final: 81 FR 45039
NYS Implementation Plan for the Infrastructure Assessment for Sulfur Dioxide Submitted 10/3/2013 Final (Partial Approval): 81 FR 95047
Final (Partial Approval): 84 FR 54502
Designation Recommendation for the 2010 Sulfur Dioxide NAAQS Submitted 6/1/2011 Pending
PM10
Document DEC Action Date EPA Action
(links go to Federal Register website)
PM10 SIP Withdrawal and Clean Data Request Submitted 1/14/2013 Final: 78 FR 72032
Final: 80 FR 45067 (Technical Amendment Concerning New York Designations for the 1987 PM10 NAAQS)
PM2.5
Document DEC Action Date EPA Action
(links go to Federal Register website)
Infrastructure Assessment for the 2012 Annual PM2.5 NAAQS Pursuant to Sections 110(a)(1) and (2) of the Clean Air Act Submitted 11/30/2016 Final (2019 Partial Approval): 84 FR 54502
Final (2020 Partial Approval): 85 FR 44209
Redesignation Request & Maintenance Plan for the 1997 Annual and 2006 24-Hour PM2.5 NAAQS - NY Metropolitan Area Submitted 6/27/2013 Final: 79 FR 21857
Other
Document DEC Action Date EPA Action
(links go to Federal Register website)
Revision to Section 111(d) State Plan for MSW Landfills Submitted 12/11/2019 Pending
SIP Revision 6 NYCRR Part 226, Solvent Cleaning Processes and Industrial Cleaning Solvents Submitted 11/5/2019 Pending
SIP Revision Incorporating 6 NYCRR Part 212, Process Operations Submitted 2/5/2019 Pending
Air Pollution Episode Alert Criteria Information 12/2018
SIP Revisions Incorporating 6NYCRR Part 218, Emission Standards for Motor Vehicles and Motor Vehicle Engines Submitted 12/13/2017 Pending
SIP Revision Incorporating a Definition Change in 6 NYCRR Part 200 Pursuant to the May 8, 2013 Repeal of 6 NYCRR Part 203 Submitted 7/20/2015
Proposed Revision to State Plan for Large Municipal Waste Combustors Submitted 7/12/2013 Proposed: 83 FR 45589
Proposed State Plan for Existing Sewage Sludge Incineration Units
Final Withdrawal of the Affirmative Defense Provision		 6/2014
10/26/2015		 Approved: 79 FR 33457
Final: 80 FR 65159

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