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.
2021 State Agency GHG Strategy Template
Strategy template for state agency greenhouse gas reporting
https://ecology.wa.gov/2021-sa-ghgstrategytemplate
Washington Department of Commerce Clean Fuel Supply Forecast spreadsheet, September 23, 2022
This is the September 23, 2022 fuel supply forecast spreadsheet prepared for the Washington Department of Commerce about the Clean Fuel Standard.
https://ecology.wa.gov/20220923cleanfuelforecast
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
July 1, 2022 cover letter to Clean Fuel Standard Cost-Benefit Analysis Report
This is a July 1, 2022 cover letter to the independent report of the cost-benefit analysis of the Clean Fuel Standard.
https://ecology.wa.gov/20220601cfscbacover
Clean Fuel Standard Cost-Benefit Analysis Report
This is an independent report of the cost-benefit analysis of the Clean Fuel Standard.
https://ecology.wa.gov/20220512cfscba
Cap-and-Invest Linkage Survey Questions
This is a pdf of a survey being distributed by Ecology to get public input on linking Washington's carbon market with markets in other jurisdictions
https://ecology.wa.gov/202303cap-and-investlinkagesurveyquestions
2019 Transportation Fuel Supplier Calculator
2019 Calculator to determine greenhouse gas emissions from transportation fuel suppliers
https://ecology.wa.gov/2019-transportation-fuel-supplier-tool
Consideration of Electricity Imports and Determination of the Electricity Importer Under the Climate Commitment Act
Written request that the Department of Ecology publish formal reporting guidance for Electric Power Entities under the Climate Commitment Act or conduct an expedited rulemaking.
https://ecology.wa.gov/202304epewhitepaper
2022 Greenhouse Gas Reporting Instructions
Instructions for state agencies on how to report their greenhouse gas emissions
https://ecology.wa.gov/20220110-ghg-reporting-instructions
Washington Mandatory Greenhouse Gas Reporting Program - Reported Emissions for 2012-2015
Certain large facilities are required to submit their greenhouse gas emissions to Ecology. This is the report of those emissions from 2012-2015.
https://ecology.wa.gov/wa-ghg-reporting-data-2012-2015
May 5, 2022 list of HFC manufacturers
This is the May 5, 2022 list of manufacturers that reported the status of their use of restricted hydrofluorocarbons (HFCs).
https://ecology.wa.gov/2022hfcmanufacturers
2012 - 2016 Washington Greenhouse Gas Reported Emissions
The Washington Mandatory Greenhouse Gas Reporting Program - Reported Emissions for 2012 - 2016
https://ecology.wa.gov/2012-2016wagreenhousegasreportedemissions
Transportation Fuel Supplier Greenhouse Gas Emission Calculator
This tool helps transportation fuel suppliers calculate their greenhouse gas emissions.
https://ecology.wa.gov/transportationfuelsuppliertool
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
DES Fleet Fuel Use by Permanently Leased Equipment and Daily Trip Rentals
Calculator for state agencies to determine their DES fuel usage.
https://ecology.wa.gov/2022-des-fleet-ghg-report
2023StateAgencyGHGCalculator
Calculator for state agencies to determine their GHG emissions
https://ecology.wa.gov/2023-state-agency-ghg-calculator
2020 State Agency Greenhouse Gas Calculator
Calculator for state agencies to determine their greenhouse gas emissions
https://ecology.wa.gov/2020-state-agency-greenhouse-gas-calculator
Washington 2018 Greenhouse Gas Contributors by Percent
Pie chart showing 2018 Washington greenhouse gas contributors by percent
https://ecology.wa.gov/20201228-ghgpiechart-2018-alt
2023-GHGreport-Instructions
Instructions for completing your 2023 GHG report
https://ecology.wa.gov/2023-state-agency-ghg-report-instructions
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