Public Comment Form

Commenting open: January 21, 2026 12:00AM PT - March 13, 2026 11:59PM PT.

Chapter 173-446 WAC: Cap-and-Invest US Forest Offsets Protocol Formal Comment Period

Ecology is considering amendments to update Chapter 173-446 WAC, Climate Commitment Act Program Rule. This rulemaking may consider amendments to address new and revised Cap-and-Invest offset protocols, including WAC 173-446-505 and WAC 173-446-580.


Offsets are projects or programs designed to reduce the amount of greenhouse gases in the atmosphere. In the Cap-and-Invest Program, offset projects must also provide direct environmental benefits to Washington. Offsets allow businesses to balance out a small portion of the negative impacts of their emissions by funding a project that benefits the environment, such as capturing methane on dairy farms or planting trees in urban areas. For additional information, visit our site on Cap-and-Invest offsets


View the rule proposal documents on Ecology's website.



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