| Title (link to summary) | Number | Date (released or updated) |
|
Regulatory guidance for Advanced Clean Cars ll, Advanced Clean Trucks, and Heavy-Duty Low NOx Omnibus
| 25-14-036 | June 2025 |
|
Interpretive Statement on the Sell-through Provisions in WAC 173-443-065 and -075
| 25-14-027 | April 2025 |
|
Reducing Greenhouse Gas Emissions in State Government
| 25-14-021 | March 2025 |
|
Washington Hydrofluorocarbon Restrictions
| 25-14-020 | March 2025 |
|
Automatic Leak Detection: Focus on: Requirements and best practices
| 25-14-016 | March 2025 |
|
Washington State Greenhouse Gas Emissions Inventory: 1990-2021
| 24-14-077 | January 2025 |
|
Fee schedule for GHG Reporting for Reporting Year 2024
| 24-14-073 | October 2024 |
|
Focus on: Pathway options for environmental review and permitting clean energy projects
| 24-06-001 | October 2024 |
|
Focus on: Clean Energy Coordinated Permit Process
| 24-06-016 | September 2024 |
|
Focus on: Clean Fuel Standard
| 21-02-018 | August 2024 |
|
CPP Project Information
| 24-06-009 | July 2024 |
|
CPP Criteria for Participation
| 24-06-008 | July 2024 |
|
CPP Process Guidance
| 24-06-007 | July 2024 |
|
CPP Pre-application Guidance
| 24-06-006 | July 2024 |
|
Focus on: Hydrofluorocarbons
| 24-14-046 | June 2024 |
|
Clean Fuel Standard Participation Guidance: Annual Fuel Pathway Report Requirements
| 24-14-040 | March 2024 |
|
Setting Up a Secure Access WA (SAW) Account and Adding the State Agency Greenhouse Gas Emissions (SAGE) Application
| 24-14-035 | March 2024 |
|
Hydrofluorocarbons Adopted Rule Language Informational Guidebook
| 23-14-025 | March 2024 |
|
Specified Source Registration for Electric Power Entities
| 24-14-020 | February 2024 |
|
Facility Reporting Tool
| 24-14-018 | February 2024 |
|
Fuel Supplier Reporting Tool
| 24-14-017 | February 2024 |
|
Greenhouse Gas Inventory Report. Focus on: The Washington Report
| 23-14-019 | December 2023 |
|
Rule Implementation Plan: Chapter 173-443 WAC, Hydrofluorocarbons and Other Fluorinated Greenhouse Gases and Chapter 173-455, Air Quality Fee Rule
| 23-02-110 | November 2023 |
|
Concise Explanatory Statement for Chapter 173-443 WAC, Hydrofluorocarbons and Other Fluorinated Greenhouse Gases and Chapter 173-455, Air Quality Fee Rule
| 23-02-109 | November 2023 |
|
Interim Guidance for Electric Power Entity Reporting
| 23-02-090 | September 2023 |
|
Participant Guidance on Documenting Exempt Fuels: Clean Fuel Standard Program Guidance
| 23-02-012 | May 2023 |
|
Fuel Supply Equipment Registration User Guide
| 23-02-028 | March 2023 |
|
Reducing Greenhouse Gas Emissions in Washington State Government
| 22-02-055 | March 2023 |
|
Small cans of refrigerant have big impacts
| 23-02-009 | January 2023 |
|
Washington State Climate Commitment Act: CITSS Corporate Associations and Structure Disclosure Guide
| 22-02-048 | October 2022 |
|
Summary of market modeling and analysis of the proposed Cap and Invest Program
| 22-02-038 | September 2022 |
|
Washington Climate Commitment Act Auctions and Trading Onboarding Resources
| 22-02-037 | September 2022 |
|
Focus on: Hydrofluorocarbons
| 22-02-036 | September 2022 |
|
Focus on: Zero-Emission Vehicles
| 22-02-033 | August 2022 |
|
Tribal Carbon Offset Assistance Grant Program: 2022-23
| 22-02-022 | June 2022 |
|
Focus on: Climate Commitment Act
| 21-02-017 | June 2022 |
|
Focus on: Siting low-carbon energy projects
| 21-06-025ES | May 2022 |
|
Rule Implementation Plan: Chapter 173-441 WAC Reporting of Emissions of Greenhouse Gases
| 22-02-003 | February 2022 |
|
Concise Explanatory Statement: Chapter 173-441 WAC
| 22-02-002 | February 2022 |
|
Focus on: Climate Strategy Budget Priorities
| 22-02-001 | January 2022 |
|
Low-Carbon Energy Project Siting Improvement: Overview of State Siting Efforts and Agencies
| 21-06-030 | December 2021 |
|
End of Life Refrigerant Management Program: Report and Recommendations
| 21-02-021 | December 2021 |
|
Focus on: Siting low-carbon energy projects
| 21-06-025 | October 2021 |
|
Focus on: Implementing 2021 Climate Policies
| 21-02-019 | July 2021 |
|
Reducing Greenhouse Gas Emisisons in Washington State Government
| 20-02-022 | March 2021 |
|
Focus on: Office of Chehalis Basin re appropriations
| 21-13-001 | February 2021 |
|
Washington State Greenhouse Gas Emissions Inventory: 1990-2018
| 20-02-020 | January 2021 |
|
Final Kalama Manufacturing and Marine Export Facility Second Supplemental Environmental Impact Statement
| 20-06-016 | November 2020 |
|
Draft Kalama Manufacturing and Marine Export Facility Second Supplemental Environmental Impact Statement
| 20-06-011 | September 2020 |
|
Rule Implementation Plan: Chapter 173-443 WAC: Hydrofluorocarbons (HFCs) – Third Emergency Rulemaking
| 20-02-007 | March 2020 |
|
Advancing Organics Management in Washington State: The Waste to Fuels Technology Partnership 2017-2019 Biennium
| 19-07-027 | January 2020 |
|
Washington State Greenhouse Gas Emission Reduction Limits
| 19-02-031 | December 2019 |
|
Rule Implementation Plan: Chapter 173-443 WAC, Hydrofluorocarbons (HFCs) – Second Emergency Rulemaking
| 19-02-025 | November 2019 |
|
Rule Implementation Plan for Chapter 173-443 WAC Hydrofluorocarbons
| 19-02-016 | August 2019 |
|
Focus on: Governor Inslee's Climate Change Investments
| 19-01-002 | January 2019 |
|
Washington State Greenhouse Gas Emissions Inventory: 1990-2015
| 18-02-043 | January 2019 |
|
Reducing Greenhouse Gas Emissions in Washington State Government
| 18-02-030 | January 2019 |
|
WestRock Tacoma Steam Limit Project Public Notice
| 18-07-023 | December 2018 |
|
Washington Greenhouse Gas Reporting Data 2012-2015
| 18-02-017 | January 2018 |
|
Clean Air Rule: Greenhouse Gas Emissions Reporting Verification- Guidance for Facility Operators
| 17-02-016 | November 2017 |
|
Clean Air Rule: Greenhouse Gas Emissions Reporting Verification Program Manual
| 17-02-011 | October 2017 |
|
Report to the Legislature on Reducing Greenhouse Gas Emissions in Washington State Government
| 16-02-027 | June 2017 |
|
Report to the Legislature on Washington Greenhouse Gas Emissions Inventory: 2010-2013
| 16-02-025 | December 2016 |
|
Rule Adoption Notice: Chapters 173-442 (Clean Air Rule) and 173-441 WAC (Reporting of Emissions of Greenhouse Gases)
| 16-02-018 | September 2016 |
|
Rule Implementation Plan: Chapters 173-442 (Clean Air Rule) and 173-441 WAC (Reporting of Emissions of Greenhouse Gases)
| 16-02-017 | September 2016 |
|
Small Business Economic Impact Statement: Chapters 173-442 (Clean Air Rule) and 173-441 WAC (Reporting of Emissions of Greenhouse Gases)
| 16-02-016 | September 2016 |
|
Final Cost-Benefit and Least-Burdensome Alternative Analysis: Chapters 173-442 (Clean Air Rule) and 173-441 WAC (Reporting of Emissions of Greenhouse Gases)
| 16-02-015 | September 2016 |
|
Concise Explanatory Statement: Chapters 173-442 (Clean Air Rule) and 173-441 WAC (Reporting of Emissions of Greenhouse Gases)
| 16-02-014 | September 2016 |
|
Reducing Greenhouse Gas Emissions in Washington State Government - Third Biennial Progress Report
| 14-02-030 | June 2015 |
|
Concise Explanatory Statement - Petroleum Refinery Greenhouse Gas Emission Requirements (Chapter 173-485 WAC) - Appendix B
| 14-02-013 | May 2014 |
|
Concise Explanatory Statement - Petroleum Refinery Greenhouse Gas Emission Requirements (Chapter 173-485 WAC) - Appendix A
| 14-02-012 | May 2014 |
|
Rule Adoption Notice - Chapter 173–485 WAC - Petroleum Refinery Greenhouse Gas Emission Requirements
| 14-02-008 | May 2014 |
|
Rule Implementation Plan - Chapter 173–485 WAC - Petroleum Refinery Greenhouse Gas Emission Requirements
| 14-02-007 | May 2014 |
|
Concise Explanatory Statement - Petroleum Refinery Greenhouse Gas Emission Requirements (Chapter 173-485 WAC)
| 14-02-006 | May 2014 |
|
Final Cost-Benefit and Least-Burdensome Alternative Analysis for Chapter 173-485 WAC Petroleum Refinery Greenhouse Gas Emission Requirements
| 14-02-005 | May 2014 |
|
Small Business Economic Impact Statement: Chapter 173-485 WAC, Petroleum Refinery Greenhouse Gas Emission Requirements
| 13-02-034 | December 2013 |
|
Preliminary Cost Benefit and Least Burdensome Alternative Analysis: Chapter 173-485 WAC, Petroleum Refinery Greenhouse Gas Emission Requirements
| 13-02-033 | December 2013 |
|
Washington Oil Refinery RACT: Technical Support Document
| 13-02-031 | December 2013 |
|
Rule Proposal Notice: Ch. 173-485 WAC, Petroleum Refinery Greenhouse Gas Emission Requirements
| 13-02-030 | December 2013 |
|
Washington State Greenhouse Gas Emissions Inventory: 2009–2010
| 12-02-034 | September 2013 |
|
Washington State Greenhouse Gas Emissions Inventory: 2007–2008
| 10-02-046 | September 2013 |
|
Department of Ecology Report to the Legislature: Dairy Manure Anaerobic Digesters
| 12-02-035 | August 2013 |
|
Reducing Greenhouse Gas Emissions in Washington State Government - Second Biennial Progress Report
| 12-01-019 | December 2012 |
|
Reducing Greenhouse Gas Emissions in Washington State Government
| 10-01-007 | December 2010 |
|
Sustainable State Government
| 09-04-009 | April 2009 |
|
Washington State 1990 Greenhouse Gas Emissions Inventory
| 07-02-021 | December 2007 |