All customer facing DEEP services have returned to normal business operations. For detailed information on what this means, visit our “New Normal” website: DEEP New Normal Information

Comments on Federal Actions

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. 

The comments below have been submitted to EPA by DEEP on various federal rules.  (All documents are in pdf format unless noted otherwise.)

Current Comment Letters

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CT DEEP Comments on the Draft Guidance: Interpretation of "Begin Actual Construction" Under the New Source Review Preconstruction Permitting Regulations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

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

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

Archived Comment Letters


Content Last Updated: May 20, 2020