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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Moderate risk waste facility guidance

Regulatory information and guidance for county moderate risk waste facilities.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/moderate-risk-waste-facility-guidance

Model remedies under the Model Toxics Control Act

We've developed model remedies to help you clean up routine, low-risk contaminated sites under MTCA.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/mtca-model-remedies

Municipal water law

We help regulate municipal water suppliers to ensure a safe and reliable drinking water supply.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/municipal-water-law

Pollution prevention services for businesses

Pollution prevention resources and technical assistance for businesses in Washington.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/pollution-prevention-services

Products required to meet recycled content minimums

Here you can determine which products are subject to Washington’s recycled content law.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/recycled-content-products

Bunkering requirements for ships

Learn about best practices and rules that promote safe, spill-free fuel loading in Washington waters.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/requirements-for-bunkering

Safer alternatives to toxic chemicals

We provide tools, training, and other resources to help you find alternatives to toxic chemicals.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/safer-alternatives

Technical resources for sediment cleanups

Access our technical resources to help support your sediment cleanup decisions.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/sediment-cleanup-resources

Shoreline Master Programs Handbook

The Handbook helps local governments update their shoreline master programs.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/shoreline-master-plan-handbook

Site Register & contaminated sites lists

Get information on contaminated site cleanups through our newsletter and database.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/site-register-lists-and-data

Stormwater permittee guidance & resources

Resources for general permit application, reporting on monitoring, and technical requirements.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources

Terrestrial Ecological Evaluations

Terrestrial Ecological Evaluations (TEEs) identify and protect native plants and animals at sites.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/terrestrial-ecological-evaluation

Acronyms & glossary for the Toxics Cleanup Program

We have a list of acronyms and terms commonly used in contaminated site cleanup work.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/toxic-cleanup-acronyms

Underground Injection Control (UIC) program: Chapter 173-218 WAC

We regulate discharge of injection well fluids to protect against groundwater contamination.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program

Rules for used oil generators

Follow these rules if you are a used oil generator.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/used-oil-generators-rules

Rules for used oil processors & re-refiners

Follow these rules if you are a used oil processor or re-refiner.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/used-oil-processors-rules

Resources for underground storage tank owners & operators

Follow procedures to keep your tanks safe.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/ust-owner-and-operator-resources

Vapor intrusion

We have guidance that helps you evaluate and respond to vapor intrusion at your MTCA cleanup site.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/vapor-intrusion-overview

Metering technical information

Find out about meter types, technical requirements, vendors, and installers.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/metering

Water quality permit database — PARIS

Our PARIS database lets you access water quality permits, discharge-monitoring reports, and more.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/water-quality-permits-database