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.
Emergency Planning & Community Right-to-Know Act
Overview of Washington's EPCRA program and general reporting requirements.
https://ecology.wa.gov/regulations-permits/reporting-requirements/emergency-planning-community-right-to-know-act
Policies and guidance for site cleanups
Policies and guidance interpret the MTCA cleanup law and help you clean up contaminated sites.
https://ecology.wa.gov/regulations-permits/plans-policies/toxics-cleanup-policies
Empirical demonstrations under MTCA
Empirical demonstrations can show that applicable groundwater cleanup levels aren’t being exceeded.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/empirical-demonstrations-mtca
Spill management teams
Spill management teams are trained personnel who support spill responses.
https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/spill-management-teams
Wildlife response service providers
Wildlife response service providers (WRSP) manage wildlife response activities during an oil spill.
https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/wildlife-response-service-providers
CLARC data tables and other technical information
Download CLARC data tables for information that helps site managers determine cleanup levels.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-clean-up-tools/clarc/data-tables
Environmental impact statement process
Overview about Environmental Impact Statements process under SEPA.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/environmental-impact-statements
Regulatory guidance for oil industry
Spills reporting and state requirements for Class 1-4 facilities, vessels, railroads, and pipelines.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-oil-industry
SEPA subject index
References to SEPA topics in rule and statute.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-subject-index
Proficiency testing requirements
Six proficiency testing sample providers are approved by our laboratory accreditation program.
https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/proficiency-testing-providers
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