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
- Request by States Pursuant to Subsection 103(a)(3) of the Clean Air Act for Maintenance of the Greenhouse Gas Reporting Program October 31, 2025
- CTDEEP Comments on the Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards September 22, 2025
- CTDEEP Comments on EPA's Repeal of Greenhouse Gas Emissions Standards for Fossil Fuel-Fired Electric Generating Units August 7, 2025
- CTDEEP Comments on EPA's Repeal of MATS Amendments August 7, 2025
Archived Comment Letters
Content Last Updated: February 2, 2026