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.

See more about this collection...

Grant Application for Diesel to Zero-Emission Refuse Vehicles, Street Sweepers, PCHE, and Freight Switchers: Frequently Asked Questions, July 17, 2023

This is the July 2023 frequently asked questions (FAQ) about the grant for zero-emission refuse vehicles,street sweepers, port cargo handling equipment, and freight switcher locomotives.

https://ecology.wa.gov/202307vwzevfaq

CO2 Removal Projects Standards Analysis - SCS Global Services

This independent report was commissioned by the Washington Legislature in 2021 to examine the potential for carbon removal projects in Washington.

https://ecology.wa.gov/20230726scsglobalreportcarbonsequestration

2023 Auctions Timeline

This is a chronological list of all auction-related events taking place in 2023 as part of the cap-and-invest program.

https://ecology.wa.gov/20230808ccaauctionstimeline2023

20230816ColvilleAQA

This is August 16, 2023 air quality advisory for the Colville Reservation.

https://ecology.wa.gov/20230816colvilleaqa

Vantage Data Center notice of construction (NOC) permit and technical support document

This is the August 2023 air quality notice of construction permit (approval order) and technical support document for Vantage Data Center.

https://ecology.wa.gov/20230829vantagenocpermit