COR400000 - General Construction Permit Renewal


General permit renewal process

As required under the Clean Water Act amendments of 1987, the Environmental Protection Agency (EPA) has established a framework for permitting municipal and industrial stormwater discharges. The Colorado program is called the Colorado Discharge Permit System (CDPS).

The division has permit regulations (5CCR 1002-61) that require stormwater discharges from construction activity to be covered under a permit. This includes all construction activity that results in land disturbance equal to or greater than one acre or disturbance of less than one acre of total land area that is part of a larger plan of development or sale if the larger common plan will ultimately disturb equal to or greater than one acre.

The construction stormwater discharge general permit expired on March 31, 2024. The division issued the renewal permit on January 31, 2024, which became effective April 1, 2024. The effective COR400000 permit, fact sheet, and response to comments are now available. The renewal permit outlines compliance with water quality standards via practice-based limitations and requirements and includes updates to add clarity.

The division’s compliance guidance documents have been updated in accordance with the permit that became effective on April 1, 2024, and is available to assist permittees in complying with the newly effective permit. 

Did you intend to plan to let your certification expire on April 1, 2024?

If your site has achieved final stabilization or is otherwise viable for termination as of April 1, 2024, and you intend to let your certification expire, please complete this form.

How to get involved



The division hosted stakeholder meetings to discuss updates, gather input, and answer questions regarding the renewal permit. In February and March 2024, the division held a number of trainings on how to comply with the renewal permit.

Sign up to receive notifications about this effort and scroll down to select “Permits - Construction.”


The division hosted in-person and virtual trainings on complying with the renewal permit. The meeting recordings, presentations, and other meeting materials are stored in this public folder.

Scheduled Trainings

  • Thursday, Feb. 15, 2024 | 1 to 3 p.m.
    • Location: Mesa County Workforce Center, Room C (512 29 1/2 Rd, Grand Junction, CO 81504)
  • Monday, Mar. 18, 2024 | 1 to 3 p.m.
    • Location: Colorado Department of Public Health & Environment, Building B, Room B1E (4300 Cherry Creek South Drive, Glendale, CO 80246
  • Thursday, Mar. 21, 2024 | 10 a.m. to Noon
    • Location: Zoom


The effective renewal permit and fact sheet are available for review. The public comment period for the COR400000 renewal permit closed on Tuesday, November 14, 2023. Submitted comments and division responses are available for review.

An informational redline of most changes made between the public notice version (9/14/23) and the final issued permit renewal (1/31/24) is available for review in this public folder. Not all changes may be captured. 


For more information about the permit, please contact:

For questions related to CEOS and the application process, email or call the Permits unit:

For questions or comments related to this email or stakeholder engagement webpage, email: