Federal Rulemaking - Archived Comment Letters
Comments on Federal Actions
Archived Comment Letters
In an effort to ensure that federal actions are responsive to our state's needs and concerns, DEEP submits comments to EPA on proposed federal actions that impact the air quality of Connecticut, the Northeast and the entire United States. EPA provides a number of tools for you to track and participate in the development of new regulations, and to learn how to comply with existing regulations. Links to current comments on federal actions can be found on the Comments on Federal Actions webpage.
The comments below have been submitted to EPA by DEEP on various federal rules. (All documents are in pdf format unless noted otherwise).
2024
No documents available
2023
- CTDEEP Comments on EPA's GHG Power Plant Proposal August 8, 2023
- CTDEEP Comments on EPA's Findings of Substantial Inadequacy and SIP Calls to Amend Provisions Applying to Excess Emissions During Periods of Startup, Shutdown and Malfunction April 25, 2023
2022
- CTDEEP Comments on the Federal Implementation Plan Addressing Regional Ozone Transport for the 2015 Ozone National Ambient Air Quality Standard June 21, 2022
- CTDEEP Comments on two rules that reclassify portions of the state to more stringent nonattainment designations for the 2008 and 2015 ozone national ambient air quality standards (NAAQS) June 13, 2022
- CTDEEP Comments on Proposed Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review January 31, 2022
2021
No documents available
2020
- CTDEEP Commissioner Dykes' Comments on EPA's Proposed Revised CSAPR Update December 14, 2020
- CT DEEP Comments on the Draft Guidance: Interpretation of "Begin Actual Construction" Under the New Source Review Preconstruction Permitting Regulations May 11, 2020
2019
- CT DEEP Comments on Oil and Natural Gas Sector (2019 Rule): Emissions Standards for New, Reconstructed, and Modified Sources Review November 25, 2019
- CT DEEP Comments on Prevention of Significant Deterioration (PSD) and Non Attainment New Source Review (NNSR): Project Emissions Accounting October 4, 2019
- CT DEEP Comments on EPAs Proposed Denial of NYDECs 126 Petition July 15, 2019
- CT DEEP Comments on Reconsideration of Supplemental Finding and Residual Risk and Technology Review for the Mercury and Air Toxics (MATS) Rule April 4, 2019
- Connecticut Comments on Proposed Review of Standards of Performance for Greenhouse Gas Emissions for New, Modified and Reconstructed Stationary Sources: Electric Utility Generating Units March 13, 2019
- Connecticut DEEP Standards of Performance for New Residential Wood Heaters, New Residential Hydronic Heaters and Forced Air Furnaces January 14, 2019
2018
- EPA's Proposed Reclassification of CT's Nonattainment Areas to Serious for the 2008 Ozone NAAQS December 14, 2018
- Adopting Subpart Ba Requirements to Apply to the Emissions Guidelines for MSW Landfills December 13, 2018
- Emissions Guidelines for Greenhouse Gases from Existing Electric Generating Units; Revisions to Emission Guideline Implementing Regulations; Revisions to New Source Review Program October 31, 2018
- Connecticut Comments on EPA's Proposed CSAPR Close-out Rule August 31, 2018
- EPA's Proposed Denial of the Maryland and Delaware 126(b) Petition July 23, 2018
- EPA's Proposed Approval of KY's 2008 Ozone NAAQS Interstate Transport SIP May 18, 2018
- DEEP Comments on EPA's Proposed Approval of Pennsylvania's RACT Requirements Under the 1997 and 2008 Ozone NAAQS April 13, 2018
- 2022-2025 Model Year Light-Duty Vehicle Greenhouse Gas Emission Standards April 2, 2018
- Connecticut's Comments regarding EPA's Proposed Denial of the 126 Petition March 26, 2018
- EPA Responses to Certain State Designation Recommendations for the 2015 Ozone National Ambient Air Quality Standards February 15, 2018
2017
- Objection to Delay of Designations for the 2015 Ozone Standard June 20, 2017
- Connecticut's Comments on Evaluation of Existing Regulations, Executive Order 13777 May 15, 2017
- Notice of Availability of the Environmental Protection Agency's Preliminary Interstate Ozone Transport Modeling Data for the 2015 Ozone National Ambient Air Quality Standard (NAAQS) April 6, 2017
- Response to December 9, 2013, Clean Air Act Section 176A Petition March 9, 2017
- Proposed Rule - Implementation of the 2015 National Ambient Air Quality Standards for Ozone: Nonattainment Area Classifications and State Implementation Plan Requirements February 10, 2017
2016
- New York; Disapproval of Interstate Transport Requirements for the 2008 Ozone NAAQS July 21, 2016
- Proposed Rule - Cross-State Air Pollution Rule Update for the 2008 Ozone NAAQS February 1, 2016
- Connecticut's Comments to EPA on the 2018 Emissions Modeling Platform June 26, 2016
2015
- Connecticut's Comments on EPA's Proposed Oil and Natural Gas Sector Emissions Standards for New and Modified Sources December 4, 2015
- Reclassification of Connecticut for failing to attain the 2008 Ozone National Ambient Air Quality Standard September 28, 2015
- Petition to add n-propyl Bromide (n-PB) to Clean Air Act Section 112 Hazardous Air Pollutants List May 13, 2015
- Proposed Rule - National Ambient Air Quality Standards for Ozone March 16, 2015
2014
- DEEP Comments on New York's Proposed RACT Demonstration for the 2008 NAAQS August 26, 2014
- Comments on the Proposed Rule: Approval and Promulgation of Air Quality Implementation Plans: Ohio: Infrastructure SIP Requirements for the 2008 Lead, 2008 Ozone, 2010 NO2, and 2010 SO2 NAAQS August 25, 2014
- Rescission of Determination of Attainment and Call for Attainment Plans for New York, New Jersey and Connecticut for the 1997 8-Hour Ozone National Ambient Air Quality Standard for the NY-NJ-CT 1997 Ozone Nonattainment Area (79 Fed. Reg. 27830, May 15, 2014) June 14, 2014
- DEEP Comments on Pennsylvania's Proposed Additional RACT Requirements for Major Sources of NOx and VOC June 5, 2014
- Proposed Standards of Performance for New Residential Wood Heaters, New Residential Hydronic Heaters and Forced-Air Furnaces, and New Residential Masonry Heaters May 5, 2014
- Connecticut's Comments to EPA on the 2011 Emissions Modeling Platform March 31, 2014
2013
- Recommended Designations for the 2012 Annual PM2.5 National Ambient Air Quality Standard December 13, 2013
- Connecticut's Comments to EPA on the Proposed Rule to Implement the 2008 Ozone National Ambient Air Quality Standard for Ozone September 4, 2013
- NACAA's Comments to EPA on the Proposed Rule to Implement the 2008 Ozone National Ambient Air Quality Standard for Ozone September 4, 2013
- NESCAUM's Comments to EPA on the Proposed Rule to Implement the 2008 Ozone National Ambient Air Quality Standard for Ozone September 3, 2013
- Comments Submitted to EPA on the Proposed Air Emissions Reporting Requirements (AERR) Rule August 5, 2013
- Revised Recommendation Regarding Designations for the 1-Hour SO2 Air Quality Standard March 14, 2013
- Attachment: Designation of Attainment of the 1-hour SO2 NAAQS TSD March 2013
- Comment on the proposed reconsideration of certain National Emission Standards for Hazardous Air Pollutants (NESHAP) and Revisions to the New Source Performance Standards (NSPS) for Fossil Fuel-Fired Electric Generating Units January 7, 2013
2012
- Comments of the Connecticut Department of Energy and Environmental Protection on the Proposed Rule for Stationary Turbines December 24, 2012
- Comments Regarding Data Reporting Requirements for State and Local Vehicle Emission Inspection and Maintenance (I/M) Programs September 11, 2012
- Redesignation Request and Maintenance Plan for the 1997 Annual and 2006 24-hour PM2.5 National Ambient Air Quality Standards June 22, 2012
- Comments submitted to EPA on Proposed Utility NESHAP July 12, 2011:
- 2008 8-Hour Ozone National Ambient Air Quality Standard: Connecticut's Response to EPA's 120-Day Letter February 27, 2012
- Attachment A: Connecticut's Factor Analysis February 27, 2012
2011
- 2008 8-Hour Ozone National Ambient Air Quality Standard November 23, 2011
- 2008 8-Hour Ozone National Ambient Air Quality Standard: Recommended Attainment Area Designations October 28, 2011
- Recommended Area Designations for the Revised SO2 Air Quality Standard June 6, 2011
- Clean Ozone Data Determination/CAA Section 28S Fee Considerations for Southwest CT April 29, 2011
- Connecticut Department of Environmental Protection Comments on Notice of Data Availability for Federal Implementation Plans To Reduce Interstate Transport of Fine Particulate Matter and Ozone February 3, 2011
2010
- Recommended Area Designations for the Revised NO2 Air Quality Standard December 17, 2010
- Notice of Data Availability Supporting Federal Implementation Plans To Reduce Interstate Transport of Fine Particulate Matter and Ozone: Revisions to Emission Inventories November 23, 2010
- Notice of Data Availability Supporting Federal Implementation Plans To Reduce Interstate Transport of Fine Particulate Matter and Ozone October 14, 2010
- Attachment: NEEDS Version 4.10 October 14, 2010 (EXCEL)
- Proposed Transport Rule September 30, 2010
- Comments on the SIP Call for Issuing Prevention of Significant Deterioration Permits to Sources of Greenhouse Gas Emissions September 30, 2010
- Comments on the Proposed Federal Implementation Plans to Reduce Interstate Transport of Fine Particulates Matter and Ozone September 28, 2010
- Request for Withdrawal of 2012 Transportation Conformity Budgets for Ozone August 23, 2010
2009
- Proposed Prevention of Significant Deterioration (PSD) and Title V Greenhouse Gas Tailoring Rule December 28, 2009
- Connecticut’s recommended attainment designations for the revised national ambient air quality standard (NAAQS) for airborne lead October 6, 2009
- Comments Submitted to EPA/NHTSA on Vehicle Fuel Efficiency Requirements (CAFE) and Motor Vehicle Greenhouse Gas Emission Standards November 19, 2009
- Comments Submitted to EPA on Proposed Rulemaking for the Emission Factors Improvement Programs November 12, 2009
- Comments Submitted to EPA on the Area Source Asphalt Manufacturing NESHAP August 7, 2009
- Proposed Disapproval of Connecticut’s Ozone Attainment Demonstration July 31, 2009
- Proposed Disapproval of the Southwest Connecticut Attainment Demonstration for the 1997 Ozone NAAQS June 8, 2009
2008
No documents available
2007
- Recommended Designations for the 24-Hour PM2.s National Ambient Air Quality Standard December 14, 2007
- Comments submitted to EPA on Aerosol Coatings VOC Standards August 29, 2007
- Comments on the Supplemental Notice of Proposed Rulemaking for Prevention of Significant Deterioration and Nonattainment New Source Review: Emission Increases for Electric Generating Units, 72 FR 26202 (May 8, 2007) August 8, 2007
- Connecticut Department of Environmental Protection Comment on Revisions to Definition of Cogeneration Unit in Clean Air Interstate Ride (CAIR), CAIR Federal Implementation Plan, Clean Air Mercury Rule (CAMR), and CAMR Proposed Federal Plan; Revision to National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers and Process Heaters; and Technical Corrections to CAIR and Acid Rain Program Rules, 72 Fed. Reg. 20465, (April 25, 2007) May 16, 2007
2006
- Comment on Notice of Data Availability for EGU NOx Annual and NOx Ozone Season Allocations for the Clean Air Interstate Rule Federal Implementation Plan Trading Programs 71 Fed. Reg. 44283, (August 4, 2006) September 1, 2006
- Comments on EPA’s Proposed Transition to New or Revised Particulate Matter National Ambient Air Quality Standards July 7, 2006
- Comments on National Ambient Air Quality Standards for Particulate Matter, and Revisions to Ambient Air Monitoring Regulations April 11, 2006
- Connecticut DEP Comments on Proposed Prevention of Significant Deterioration, Nonattainment New Source Review and New Source Performance Standards: Emissions Test for Electric Generating Units, 70 FR 61081 (October 20, 2005) February 17, 2006
- Comments submitted to EPA on Proposed Rule for Large Municipal Waste Combustors February 3, 2006
- Connecticut Department of Environmental Protection Comments on the Proposed Rule to Implement the Fine Particle National Ambient Air Quality Standards, 70 FR 65984 (November 1, 2005) January 30, 2006
2005
- Connecticut Department of Environmental Protection Comment on Rule To Reduce Interstate Transport of Fine Particulate Matter and Ozone (Clean Air Interstate Rule): Reconsideration, 70 Fed Reg. 72268, (December 2, 2005) December 23, 2005
- Proposed Average Fuel Economy Standards for Light Trucks Model Years 2008-2011 November 22, 2005
- Connecticut Department of Environmental Protection Comments on Rulemaking on Section 126 Petition from North Carolina To Reduce Interstate Transport of Fine Particulate Matter and Ozone; Federal Implementation Plans To Reduce Interstate Transport of Fine Particulate Matter and Ozone; Revisions to the Clean Air Interstate Rule; Revisions to the Acid Rain Program; Proposed Rule, 70 Fed. Reg. 49708, (August 24, 2005) October 21, 2005
- PM2.5 National Ambient Air Quality Standard Final Designations for Connecticut February 15, 2005
2004
- Connecticut DEP Comments on EPA ’s Notice of Data Availability Regarding The Proposed Clean Air Mercury Rule December 28, 2004
- Comments Submitted to EPA on Stage II Vapor Recovery/ORVR
- Comments submitted to EPA on Stage II Issues Paper September 30, 2004
- Comments submitted to EPA Regarding Stage II/ORVR (link to EPA)
- Connecticut Designations under the PM2.5 National Ambient Air Quality Standard August 30, 2004
- Attachment: Response to the EPA 9-Factor Analysis for PM2.5 Designations August 26, 2004
- Connecticut DEP Comments on Supplemental Proposal for the Rule to Reduce Interstate Transport of Fine Particulate Matter and Ozone July 23, 2004
- Comments on Proposed National Emission Standards for Hazardous Air Pollutants; and, in the Alternative, Proposed Standards of Performance for New and Existing Stationary Sources: Electric Utility Steam Generating Units June 28, 2004
- Comments on Proposed Rule to Reduce Interstate Transport of Fine Particulate Matter and Ozone March 30, 2004
- PM2.5 National Ambient Air Quality Standard Recommended Designations for Connecticut February 10, 2004
- Attachment: Technical Support Document Recommendation for PM2.5 Designation (Corrected) February 2004
- Figures for Technical Support Document February 2004
- Appendix - Connecticut DEP PM Monitoring Plan July 1, 1998
Content Last Updated on January 28, 2026