Proposed 2027 Construction General Permit (CGP) and Related Documents

EPA is seeking public comment on its proposed 2027 CGP. Once finalized, this permit will replace the 2022 CGP, which expires on February 16, 2027, and will cover stormwater discharges from construction activities in areas where EPA is the NPDES permitting authority in EPA’s Regions 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.

EPA will accept comments on the proposed permit during a 30-day comment period, which will be announced in the next few days in a Federal Register notice. This webpage will be updated to include a copy of the Federal Register notice and the date by which comments must be received.

Comments can be submitted on www.regulations.gov for docket ID # EPA-HQ-OW-2025-0760.

EPA Webinar on the Proposed CGP: EPA is hosting a webinar on Tuesday, August 18, 2026, from 2:00 to 3:30 p.m. (Eastern time) to review the proposed changes to the CGP and to answer questions. Register to participate in the webinar.

Key documents that are part of the proposed 2027 CGP are available below. Note: proposed changes to the CGP permit and appendices appear in blue font; changes to the CGP fact sheet appear in purple font.

• Proposed 2027 CGP – Permit (not including appendices) (pdf) (710.6 KB)
• Proposed 2027 CGP – Appendices (only includes appendices with proposed changes):
  • Appendix A - Definitions (pdf) (294.95 KB)
  • Appendix B - Areas of Permit Coverage (pdf) (129.75 KB)
  • Appendix H - Notice of Intent (pdf) (298.43 KB)
  • Appendix I - Notice of Termination (pdf) (164.15 KB)
• Proposed 2027 CGP – Fact Sheet (pdf) (1.16 MB)
• Federal Register Notice (pdf) (324.21 KB)
  (NOTE: This document is a prepublication version of the Federal Register notice, signed by all 10 U.S. EPA Regions on July 28, 2026. EPA is submitting the notice for publication in the Federal Register. The Agency has taken steps to ensure the accuracy of this version, but it is not the official version. This document will be updated upon publication in the Federal Register.)