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Comment Period

Clean Fuels Program Rule

Informal public comment period

Oct. 6, 2021 - April 10, 2022, 11:59 p.m.

We are starting rulemaking for Chapter 173-424 WAC, Clean Fuels Program Rule.

Comment on the draft rule to help us write the proposed rule. An informal public comment period occurs during rulemaking before we propose a rule (file the CR-102 form). During an informal public comment period, we use comments to help us write the proposed rule. We will hold a formal public comment period in Summer 2022 when we propose the rule.

This rulemaking may:

  • Establish carbon intensity standards for transportation fuels used in Washington.
  • Assign compliance obligations to fuels with carbon intensities that exceed the standard.
  • Establish compliance methods including assigning credits to fuels that have carbon intensities below the standard.



We write rules to implement and enforce state and federal environmental laws and rules.  Ecology follows a 3-phase process for rulemaking:

  1. Announcement and development
  2. Proposal
  3. Adoption

For each phase of the process, we update the rulemaking web page and notify interested parties. We also file notice in the Washington State Register. To learn more about Ecology’s rulemaking process, read the Frequently Asked Questions.

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Comment online

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Comment by mail

Debebe Dererie
Washington Department of Ecology
Air Quality Program
P.O. Box 47600
Olympia, WA 98504-7600
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Debebe Dererie
Rulemaking Lead

To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.