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.

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VW state settlement allocations

A pie chart showing how the VW state settlement funds are being used.

https://ecology.wa.gov/20200408-vwallocationscircle-alt

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

NOx reductions alt text document

Arrow showing past & current NOx reductions in comparison to our goal and future reductions using VW settlement funds

https://ecology.wa.gov/20200407-noxreductionsarrow-alt

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

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

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

Tracking Washington Greenhouse Gases

Chart showing past emissions and future greenhouse gas limits set by the Legislature.

https://ecology.wa.gov/20201221-ghg-actual-projections_alt

State Agency Greenhouse Gas Emissions Calculator

State agencies use this calculator to determine and report their greenhouse gas emissions.

https://ecology.wa.gov/stateagencyghgcalculator

2017 Greenhouse gas emissions by sector

Alt text for greenhouse gas emission by sector graphic

https://ecology.wa.gov/20200407-2017ghgemissionsbysector-alt

November 30, 2021 list of HFC manufacturers

This is the November 30, 2021 list of manufacturers that reported the status of their use of restricted hydrofluorocarbons (HFCs).

https://ecology.wa.gov/2021hfcmanufacturers