Publications & Forms

Title (link to summary)	Number	Date (released or updated)
Focus on Cap and Invest Program Linkage	23-14-004	December 2025
Greenhouse Gas Reporting and Verification: Third-Party Verification Guidelines	23-02-089	December 2025
Sediment Cleanup User’s Manual SCUM	12-09-057	December 2025
Chapter 173-423 WAC, Clean Vehicles Program Rulemaking Environmental Justice Assessment	25-14-077	October 2025
Chapter 173-423 WAC, Clean Vehicles Program Rulemaking Implementation Plan	25-14-076	October 2025
Chapter 173-423 WAC, Clean Vehicles Program Rulemaking Concise Explanatory Statement	25-14-075	October 2025
Refrigeration and Air-Conditioning Management Platform (RAMP) user guide	23-14-031	October 2025
Washington State Climate Resilience Strategy – 2025 Progress Report	25-01-006	September 2025
Registered Parties in the Clean Fuel Standard Program	23-02-021	July 2025
Climate Pollution Reduction Program Specific Guidelines to the Ecology Compliance Assurance Manual	25-14-032	June 2025
Reducing Greenhouse Gas Emissions in State Government	25-14-021	March 2025
Statement on the Effective Date of HFC Prohibitions About Data Center Cooling Equipment	25-14-012	February 2025
2025 Carbon Intensity Values for Electricity	25-14-008	February 2025
Tribal Carbon Offset Assistance Grants Application Instructions 2025-2027	22-02-024	February 2025
Share your comments: Cap-and-Invest Linkage Agreement	24-14-084	January 2025
Washington State Greenhouse Gas Emissions Inventory: 1990-2021	24-14-077	January 2025
WFRS-CBTS User Guide	22-02-065	January 2025

Ecology Publications & Forms

Climate Change (240 publications 1991-2026)