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.
Underground injection control well registration requirements & information
Get Underground Injection Control (UIC) well registration requirements and information.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/uic-registration-requirements-information
401 Water Quality Certifications for non-hydropower permits
We review projects needing federal approval to assure compliance with state water quality standards.
https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/non-hydropower-401-certifications
SEPA laws and regulations: current & historical revisions
We manage SEPA and related rules and provide background about rulemaking.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-laws-rules
Mineral prospecting and placer mining
Information from Ecology and WDFW about mineral prospecting and placer mining, and ESHB 1261.
https://ecology.wa.gov/regulations-permits/permits-certifications/mineral-prospecting-and-placer-mining
Water rights and dam safety policies, procedures & guidance
Policies, procedures & guidance guide our water right and dam safety work
https://ecology.wa.gov/regulations-permits/plans-policies/water-rights-dam-safety-policies-procedures-guidan
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
Managing pharmaceutical waste
Learn how to manage waste pharmaceuticals properly to keep them out of the environment.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste
Pharmaceutical waste management options for eligible facilities
Facilities that meet certain criteria can use pharmaceutical waste management options.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste/management-options
Frequently asked questions about pharmaceutical waste
Frequently asked questions about pharmaceutical waste and our answers.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste/frequently-asked-questions
SEPA checklist guidance, Section B: Transportation
Guidance for Transportation section for Part B of SEPA environmental checklist.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-14-transportation
Dangerous waste permits
Facilities that store, treat, or dispose of dangerous waste must have a dangerous waste permit.
https://ecology.wa.gov/regulations-permits/permits-certifications/dangerous-waste-permits
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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