Regulations & Permits
Use this portal to filter and search for all of our regulatory information.
We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.
DES leased vehicle fuel use by agency
Reporting tool for DES leased vehicle fuel use by agencies
https://ecology.wa.gov/2021-des-leasedvehiclefueluseagency
DES Permanent Assigned Vehicle and Daily Trip Vehicle Fuel Use
DES calculator for reporting permanent vehicle and daily trip fuel use.
https://ecology.wa.gov/2021-despermvehicle-dailyvehiclefueluse
Washington Climate Commitment Act: Summary of economic and market modeling and analysis of the proposed cap and invest program
This is the foreword to the draft report of the summary of market modeling and analysis of the proposed cap and invest program of the Climate Commitment Act.
https://ecology.wa.gov/202207ccaeconforewd
2021 State Agency GHG Strategy Template
Strategy template for state agency greenhouse gas reporting
https://ecology.wa.gov/2021-sa-ghgstrategytemplate
2021 State Agency GHG Calculator
Calculator for state agencies to determine their greenhouse gas emissions
https://ecology.wa.gov/2021-stateagencyghgcalculator
Washington Climate Commitment Act: Summary of market modeling and analysis of the proposed Cap and Invest Program, June 2022
This is the draft report of the summary of market modeling and analysis of the proposed cap and invest program of the Climate Commitment Act.
https://ecology.wa.gov/202206ccaeconmodel
2021 State Agency Greenhouse Gas Reporting Calculator
Calculator for state agencies to determine their greenhouse gas emissions
https://ecology.wa.gov/2021-state-agency-ghg-calculator
2001 - 2017 GHG and GDP percentage changes
graph showing population, economy, greenhouse gas emissions from 2001 - 2017
https://ecology.wa.gov/20191118ghggdp-alt
HFC User Guide, long version
This is the longer instructions about how to submit your completed HFC notification form using our online reporting system.
https://ecology.wa.gov/hfc-user-guide-long-20190901
HFC User Guide, short version
This is the short (one-page) instructions about how to submit your completed HFC notification form using our online reporting system.
https://ecology.wa.gov/hfc-user-guide-short-20190901
Greenhouse Gas Assessment for Projects (GAP) Rulemaking June 2020 Presentation
Public webinar presentation given 6-25-20
https://ecology.wa.gov/6-25-20-presentation
Greenhouse Gas Assessment for Projects (GAP) Rulemaking June 2020 Meeting Summary
Meeting summary for 6-25-20 public rulemaking webinar
https://ecology.wa.gov/6-25-20-meeting-summary
Greenhouse Gas Assessment for Projects (GAP) Rulemaking July 2020 Meeting Summary
Meeting summary for 7-23-20 public rulemaking webinar
https://ecology.wa.gov/7-23-20-meeting-summary
Director's Preliminary Linkage Decision
The Director of Ecology made a preliminary decision to pursue linking Washington's carbon market with California and Québec.
https://ecology.wa.gov/20231002directorlinkagedecision
Cap-and-Invest Agency Request Legislation
Summary of the the proposed agency request legislation for the Cap-and-Invest Bill
https://ecology.wa.gov/20231108capinvestagencyrequest
Cap-and-Invest Key Market Events Timeline 2024
Static .pdf timeline of key cap-and-invest market events for 2024. Companion to the interactive timeline on the Auctions and Market webpage.
https://ecology.wa.gov/20240110capandinvestkeymarketeventstimeline2024
State Agency Reporting Instructions
.pdf instructions for State Agencies reporting GHG emissions using the State Agency GHG Reporting tool
https://ecology.wa.gov/2024stateagencyreportinginstruction-ghgreporting
State Agency Greenhouse Gas Emissions Calculator
Excel sheet used to determine state agencies annual greenhouse gas emissions
https://ecology.wa.gov/2024stateagencyghgemissionscalculator-ghgreportingtool
Fuel Exemptions Workgroup Meeting Agendas and Summaries
Agendas and summaries from the fuel exemption workgroup meeting
https://ecology.wa.gov/fuel_exemptions_workgroup
Public comments on Cap-and-Invest linkage (Jan. 31-May 15, 2023)
Document with all comments received about linkage from Jan. 31 to May 15, 2023
https://ecology.wa.gov/linkage_comments_spring2023
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