New PFAS rules took effect in 2025, making consumer products safer in Washington. See how Ecology is reducing pollution at ...

Learn more about climate action in Washington. Owners and operators of municipal solid waste landfills Projects must be necessary and directly related to meeting or exceeding the compliance ...

We are responsible for protecting, preserving, and enhancing Washington’s environment. Permits and certifications ensure that individuals and businesses understand and comply with all applicable ...

Organohalogen flame retardants (OFRs) Other electronic enclosure products for Group 1 entities Restricted Jan. 1, 2027 Organohalogen flame retardants (OFRs) Other electronic enclosure products for ...

Planning to visit one of our offices? If you would like to meet with a staff member in person, please call ahead to confirm that they will be available. Our office hours are Monday to Friday, 8 a.m. – ...