| Title (link to summary) | Number | Date (released or updated) |
|
Large refrigeration, larger climate impacts focus on: Large commercial refrigeration HFC restrictions
| 25-14-097 | November 2025 |
|
Ecology Offset Credit Issuance Table
| 23-14-026 | November 2025 |
|
Reporting Year 2025 Fee Schedule
| 25-14-096 | October 2025 |
|
Allowance Allocation to Emissions-Intensive, Trade-Exposed Industries: Vintage 2026
| 25-14-095 | October 2025 |
|
Opt-In to Earn Clean Fuel Standard Credit
| 25-14-094 | October 2025 |
|
Final Regulatory Analyses for Chapter 173-424 WAC, Clean Fuels Program Rule
| 25-14-093 | October 2025 |
|
Rule Implementation Plan: Clean Fuel Standard Rulemaking, Chapter 173-424 WAC
| 25-14-092 | October 2025 |
|
Environmental Justice Assessment: Clean Fuel Standard Rulemaking, Chapter 173-424 WAC
| 25-14-091 | October 2025 |
|
Concise Explanatory Statement: Clean Fuel Standard Rulemaking, Chapter 173-424 WAC
| 25-14-090 | October 2025 |
|
Final Regulatory Analyses for Chapter 173-443 WAC, Hydrofluorocarbons (HFCs) and Other Fluorinated Greenhouse Gases
| 25-14-089 | October 2025 |
|
Implementation Plan for Chapter 173-443 WAC, Hydrofluorocarbons (HFCs) and Other Fluorinated Greenhouse Gases rulemaking
| 25-14-088 | October 2025 |
|
Chapter 173-443 WAC, Hydrofluorocarbons (HFCs) and Other Fluorinated Greenhouse Gases rulemaking — Environmental Justice Assessment
| 25-14-087 | October 2025 |
|
Concise Explanatory Statement for Chapter 173-443 WAC, Hydrofluorocarbons (HFCs) and Other Fluorinated Greenhouse Gases rule
| 25-14-086 | October 2025 |
|
Guidance on Registering Retail Fuel Stations for Agricultural Fuel Use Exemptions Under the Climate Commitment Act
| 25-14-085 | October 2025 |
|
Cap-and-Invest Program Auction Notice, December 2025 Auction #12
| 25-14-082 | October 2025 |
|
Asset-Controlling Supplier (ACS) Systems Emission Factor
| 25-14-079 | October 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 |
|
APCR Auction #4 October 2025 Public Proceeds Report
| 25-14-060 | October 2025 |
|
APCR Auction #4 October 2025 Summary Report
| 25-14-059 | October 2025 |
|
Auction #11 September 2025 Public Proceeds Report
| 25-14-052 | October 2025 |
|
Regulatory guidance for Advanced Clean Cars ll, Advanced Clean Trucks, and Heavy-Duty Low NOx Omnibus
| 25-14-036 | October 2025 |
|
Refrigeration and Air-Conditioning Management Platform (RAMP) user guide
| 23-14-031 | October 2025 |
|
Clean Fuel Standard: Quarter 1 2025 data summary
| 25-14-078 | September 2025 |
|
Climate care starts with a vending machine. Focus on: Vending machine HFC restriction in Washington
| 25-14-074 | September 2025 |
|
Washington Cap-and-Invest Program Broker List
| 25-14-073 | September 2025 |
|
Washington Cap-and-Invest Program 2025 Quarter 3 CITSS Registrant Report
| 25-14-069 | September 2025 |
|
Washington Cap-and-Invest Program 2025 Quarter 3 CITSS Holdings Report
| 25-14-068 | September 2025 |
|
Cap-and-Invest Program APCR Auction Notice, November 2025 APCR Auction #5
| 25-14-067 | September 2025 |
|
Carbon Dioxide Removal Evaluation Study
| 25-14-066 | September 2025 |
|
Guidance on reporting rules for calendar 2026 relevant to centralized electricity markets
| 25-14-065 | September 2025 |
|
2025 Summary Report on the Science of Human Caused Climate Change and Recommendations for Washington State’s Greenhouse Gas Emission Reduction Limits
| 25-14-064 | September 2025 |
|
Auction #11 September 2025 Summary Report
| 25-14-051 | September 2025 |
|
Cap-and-Invest Carbon Market Linkage Updates
| 25-14-019 | September 2025 |
|
Caring for the climate, one can at a time. Focus on: Motor Vehicle Air Conditioning small cans of refrigerant
| 25-14-063 | August 2025 |
|
Advance Credit Guide Applying for Advance Credits under Washington’s Clean Fuel Standard
| 25-14-062 | August 2025 |
|
Refrigerant Management Program fee for 2026
| 25-14-061 | August 2025 |
|
Cap-and-Invest Program APCR Auction Notice, October 2025 APCR Auction #4
| 25-14-058 | August 2025 |
|
Preparing for the 2024 Annual Compliance Obligation
| 25-14-054 | August 2025 |
|
2025 Summary of Potential APCR Auction Dates
| 24-14-092 | August 2025 |
|
Final Regulatory Analyses for Chapter 173-446 WAC, Climate Commitment Act Program Rule (Ozone Depleting Substances Offsets)
| 25-14-053 | July 2025 |
|
Cap-and-Invest Program Auction Notice, September 2025 Auction #11
| 25-14-050 | July 2025 |
|
Staying cool and compliant Focus on: Room air conditioners and residential dehumidifiers
| 25-14-048 | July 2025 |
|
Ozone Depleting Substances Protocol
| 25-14-046 | July 2025 |
|
Chapter 173-446 WAC, Offsets Rulemaking—ODS Protocol Environmental Justice Assessment
| 25-14-045 | July 2025 |
|
Implementation Plan for Chapter 173-446 WAC, Offsets Rulemaking—ODS Protocol
| 25-14-044 | July 2025 |
|
Concise Explanatory Statement for Chapter 173-446 WAC, Offsets Rulemaking—ODS Protocol
| 25-14-043 | July 2025 |
|
Washington Cap-and-Invest Program 2025 Quarter 2 CITSS Registrant Report
| 25-14-042 | July 2025 |
|
Auction #10 June 2025 Public Proceeds Report
| 25-14-038 | July 2025 |
|
Cap-and-Invest Program Auction Revenue Forecast – June 2025
| 25-14-035 | July 2025 |
|
Clean Fuel Standard: Quarter 4 2024 Data Summary
| 25-14-049 | June 2025 |
|
Washington Cap-and-Invest Program 2025 Quarter 2 CITSS Holdings Report
| 25-14-041 | June 2025 |
|
How climate policy shapes local industry and your community
| 25-14-040 | June 2025 |
|
Preliminary Regulatory Analyses for Chapter 173-424 WAC, Clean Fuels Program Rule
| 25-14-039 | June 2025 |
|
Auction #10 June 2025 Summary Report
| 25-14-037 | June 2025 |
|
Guidance on the Cap-and-Invest Program’s beneficial holdings prohibition
| 25-14-033 | June 2025 |
|
Climate Pollution Reduction Program Specific Guidelines to the Ecology Compliance Assurance Manual
| 25-14-032 | June 2025 |
|
Clean Fuel Standard Participation Fee 2025
| 25-14-030 | June 2025 |
|
Clean Fuel Standard Compliance and Credit Clearance Market Overview
| 25-14-034 | May 2025 |
|
COMET-Planner User Guide
| 25-14-031 | May 2025 |
|
Preliminary Regulatory Analyses for Chapter 173-443 WAC, Hydrofluorocarbons (HFCs) and Other Fluorinated Greenhouse Gases
| 25-14-024 | May 2025 |
|
Interpretive Statement on the Sell-through Provisions in WAC 173-443-065 and -075
| 25-14-027 | April 2025 |
|
Limited Enforcement Discretion for snowplowing, snow removal, and street sweeping vehicles related to the Advanced Clean Trucks and Heavy-Duty Low-NOx Omnibus Standards
| 25-14-026 | April 2025 |
|
2024 Annual Cost of the Clean Fuel Standard
| 25-14-025 | April 2025 |
|
Cap-and-Invest Program Auction Notice, June 2025 Auction #10
| 25-14-023 | April 2025 |
|
Auction #9 March 2025 Public Proceeds Report
| 25-14-004 | April 2025 |
|
2025 Summary of Expected Auction Dates
| 24-14-091 | April 2025 |
|
Quarter 3, 2024 Data Summary Clean Fuel Standard
| 25-14-022 | March 2025 |
|
Reducing Greenhouse Gas Emissions in State Government
| 25-14-021 | March 2025 |
|
Washington Hydrofluorocarbon Restrictions
| 25-14-020 | March 2025 |
|
Washington Cap-and-Invest Program 2025 Quarter 1 CITSS Registrant Report
| 25-14-018 | March 2025 |
|
Washington Cap-and-Invest Program 2025 Quarter 1 CITSS Holdings Report
| 25-14-017 | March 2025 |
|
Automatic Leak Detection: Focus on: Requirements and best practices
| 25-14-016 | March 2025 |
|
State Agency Greenhouse Gas Emissions Reporting Instructions
| 25-14-015 | March 2025 |
|
Tribal Climate Capacity Grants, Grant Guidelines, Fiscal Year 2025-2027
| 25-14-011 | March 2025 |
|
Tribal Carbon Offset Assistance Grant Program 2025-2027
| 25-14-010 | March 2025 |
|
Washington Cap-and-Invest Program 2025 Key Market Events
| 25-14-005 | March 2025 |
|
Auction #9 March 2025 Summary Report
| 25-14-003 | March 2025 |
|
Leak inspection: Save money with early detection
| 25-14-013 | February 2025 |
|
Statement on the Effective Date of HFC Prohibitions About Data Center Cooling Equipment
| 25-14-012 | February 2025 |
|
Preliminary Regulatory Analyses for Chapter 173-446 WAC, Ozone Depleting Substances Offsets
| 25-14-009 | February 2025 |
|
2025 Carbon Intensity Values for Electricity
| 25-14-008 | February 2025 |
|
Washington Cap-and-Invest Program Annual Proceeds Report
| 25-14-007 | January 2025 |
|
Cap-and-Invest Program Auction Revenue Forecast – December 2024
| 25-14-002 | January 2025 |
|
Cap-and-Invest Program Auction Notice, March 2025 Auction #9
| 25-14-001 | January 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 |
|
Washington Cap-and-Invest Program 2024 Quarter 4 CITSS Registrant Report
| 24-14-071 | January 2025 |