Chapter 173-441 & 173-446 WAC, Cap-and-Invest Program Updates and Linkage
Ecology is considering amendments to Chapter 173-446 WAC and Chapter 173-441 WAC to make improvements to the implementation of the Cap-and-Invest Program, facilitate the linkage of Washington’s carbon market with California-Québec carbon market, as well as make other necessary updates.
We originally announced the Cap-and-Invest Linkage rulemaking in April of 2024 (filed a CR-101). On March 31, 2025, we announced the Cap-and-Invest Program Updates and Linkage Rulemaking (filed a new CR-101) to address a broader set of Cap-and-Invest Program topics.
Rulemaking timeline
Announcement phase (CR-101)
Filing date:
March 31, 2025
Announcement documents
- Announcement Notice – CR-101 form (filed March 31, 2025)
- Notice of Withdrawal
- CCA Market Notice: Update on Cap-and-Invest rulemaking topics and timeline (March 17, 2025)
Announcement documents (withdrawn)
- Announcement Notice – CR-101 form (filed April 11, 2024; withdrawn March 31, 2025)
- CCA Market Notice: Possible topics for linkage rulemaking (April 11, 2024)
Rule development phase
April 11, 2024 – Early 2026Public input & involvement
We plan to hold public meetings to provide information about the rulemaking and seek your input. We'll update this page with meeting specifics.
To get updates about these meetings and this rulemaking, join our mailing list.
Draft rule language
Below are the most updated drafts of the rule language:
- Draft rule language (173-446) - Changes to the Climate Commitment Act Program rule
- Draft rule language (173-441) - Changes to the Reporting of Emissions of Greenhouse Gases rule
Public comment period (informal) for electric utility allocation topics
April 1, 2025, noon – Oct. 1, 2025, 11:59 p.m.
Provide informal comments on this topic
Public comment period (informal)
June 3, 2024, 5 p.m. – Sept. 27, 2024, 11:59 p.m.
Review informal comments on this rulemaking.
Public comment period for electricity topics (informal)
Oct. 30, 2024, midnight – Dec. 20, 2024, 11:59 p.m.
Review comments on electricity topics for the linkage rulemaking.
Ecology's public meetings
Date | Documents | Location |
---|---|---|
Electric utility allocation workshop April 17, 2025 |
Materials will be posted at noon April 16. | |
Linkage Rulemaking Public Meeting Wednesday, July 10, 2024 |
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Linkage Environmental Justice Monday, July 22, 2024 |
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Linkage Rulemaking Meeting on Electricity Topics Tuesday, Nov. 19, 2024 |
Public meeting recording |
Webinar information
Register for each webinar to get your meeting ID and passcode.
To hear the webinar better or to call in only, use your phone (instead of the computer) to call 253‑215‑8782.
Related links
Contact information
Surabhi Subedi
Environmental Planner
CPRRulemaking@ecy.wa.gov
360-280-6566
Stay informed
Join our email list
Accessibility
To request ADA accommodation for disabilities, or printed materials in a format for the visually impaired, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831. People with impaired hearing may call Washington Relay Service at 711. People with speech disability may call TTY at 877-833-6341.