In 2020, the Legislature and Governor updated the State Agency Climate Leadership Act codified in Chapter 70A.45 RCW. The Act directs state agencies, including universities, colleges, and community ...

Our most frequently requested information: ...

Public comments are accepted over a 30-, 45-, or 60-day period. During that time, you can share your input with us about specific changes in the permits we regulate. We review all comments and then ...

Washington is home to some of the nation's most productive farmlands. The way landowners and operators manage their lands also has important impacts on water quality. We work with landowners, ...

Looking for a service provider? Here is a excel spreadsheet that lists certified UST service providers.This list is updated quarterly. Disclaimer: We do not assume any liability for the accuracy or ...

Under RCW 42.56.120(2), we are allowed to recover costs directly related to the copying of public records. We cannot charge a fee for inspection of records, or staff time spent on locating records or ...

This is the gateway to Ecology's many web-accessible databases and tools.

Producers and suppliers of low-carbon fuels – fuels with a carbon intensity below the standard for that year – are eligible to generate credits in the Clean Fuel Standard. Examples of clean fuel ...

Clean diesel grants will reduce greenhouse gases and protect people from toxic diesel emissions. This grant's primary purpose is to electrify school buses. It also supports reducing idling and ...

Ecology leads floodplain management in Washington. We provide technical assistance to local communities to help them better plan within floodplains. We work to reduce losses to life and property and ...

In 2008, Washington's Legislature passed the Children's Safe Products Act (or CSPA) (Chapter 70A.430 RCW). This law applies to children’s products sold in Washington state. Washington’s laws apply to ...