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.
Publication index: Climate change publications and reports
List of links to all Ecology climate change publications, sorted by year.
https://ecology.wa.gov/climate-publications
Hydrofluorocarbon rulemaking email notification list
Join our Hydrofluorocarbon (HFC) rulemaking email list
https://ecology.wa.gov/hydrofluorocarbon-rulemaking-email-notification-list
Email list: Zero emissions vehicles
Sign up for email updates about Zero Emissions Vehicles (Zevs).
https://ecology.wa.gov/email-list-zero-emissions-vehicles
Clean energy coordination
We provide information on how clean energy projects are sited, reviewed, and permitted.
https://ecology.wa.gov/regulations-permits/sepa/clean-energy
Focus on: Climate change and health equity
A joint Ecology and Health focus sheet exploring the health and community impacts of climate change.
https://ecology.wa.gov/201210-climate-justice-focus-sheet
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
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
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
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
Washington's greenhouse gas emissions targets
A chart showing greenhouse gas emission reduction targets compared to a 1990 baseline.
https://ecology.wa.gov/20190729emissions-alt
2012-2016 Washington's Mandatory Greenhouse Gas Reported Emissions
This report shows greenhouse gas emissions reported to us under the state mandatory reporting program.
https://ecology.wa.gov/2012-2016wagreenhousegasreportedemissions-f2a2b89e80ce6dd5c1530dae57fbe534
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
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