Instream Flow Rules Revisions to Implement House Bill 20-1157

On January 26, 2021, the Colorado Water Conservation Board (CWCB) held a rulemaking hearing at which it adopted amendments to the Rules Concerning Colorado's Instream Flow and Natural Lake Level Program (ISF Rules) and a Statement of Basis and Purpose. The amendments to the ISF Rules: (1) address the rulemaking requirements of HB20-1157; (2) update a reference to the CWCB's website; and (3) update references to Colorado Parks and Wildlife. The Rules Adoption Order, amendments to the ISF Rules, and the Statement of Basis and Purpose can be found at the “Post-Hearing Documents” link below.

The final adopted ISF Rules were published in the February 25, 2021 Colorado Register and became effective on March 17, 2021, along with the updated Statement of Basis and Purpose.

Documents related to this rulemaking process can be found at the links below. For more information, contact Kaylea White.