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
FAQ: Evaluate options to clean up homes and small businesses
These FAQs help homeowners and small businesses evaluate cleanup options and complete cleanup work.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/evaluation-cleanup-for-homeowners-small-busine
Successful no further actions
Sites cleaned up using a model remedy might achieve "no further action" status faster.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/mtca-model-remedies/no-further-actions
SEPA document templates (forms)
SEPA checklist with guidance plus other suggested templates for SEPA notices.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-document-templates
Tier Two reporting
Facility reporting guidelines for Tier Two, including how to file with Tier Two Online.
https://ecology.wa.gov/regulations-permits/reporting-requirements/emergency-planning-community-right-to-know-act/tier-two-reporting
Shellfish aquaculture 401 certification
We modified our certification process for shellfish growers because of new federal requirements.
https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/shellfish-aquaculture
EPCRA reporting frequently asked questions
Answers to questions that are often asked about EPCRA reporting requirements.
https://ecology.wa.gov/regulations-permits/reporting-requirements/emergency-planning-community-right-to-know-act/faq
Sand & Gravel Permit guidance
Guidance to implement your Sand & Gravel General Permit.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/sand-and-gravel-permit-guidance
SEPA training
We provide SEPA training sessions and other presentations.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-workshops-training
Oil spill contingency planning standards
We verify standards for industry contingency plans using a GIS-based model.
https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/spills-planning-standards
Worldwide Response Resource List
Database of information on oil spill response equipment.
https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/worldwide-response-resource-list
Overview of Washington State Environmental Policy Act (SEPA)
SEPA is the environmental review process for public agencies in Washington.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/basic-overview
Episodic generation of dangerous waste
Manage waste as an episodic event to maintain your current generator category.
https://ecology.wa.gov/regulations-permits/reporting-requirements/dangerous-waste-reporting-requirements/notification-of-dangerous-waste/episodic-generation
Designate your waste — is it dangerous?
Designation is the process of determining if a waste is dangerous waste and what the hazards are.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation
Western Washington Hydrology Model
Western WA Hydrology Model models most hydrologic conditions for stormwater control and design.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/stormwater-manuals/western-washington-hydrology-model
Recycling credits
Recycling credits may affect your Pollution Prevention Plan or the Hazardous Waste Planning Fee.
https://ecology.wa.gov/regulations-permits/reporting-requirements/dangerous-waste-reporting-requirements/dangerous-waste-annual-report/recycling-credits
Generator category
Businesses that generate dangerous waste must determine their generator category each month.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/generator-category
SEPA checklist guidance
We provide information about each SEPA checklist question.
https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance
CLARC glossary
A glossary for terms and acronyms in CLARC's resource pages.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-clean-up-tools/clarc/glossary
Accumulation
Learn more about on-site dangerous waste accumulation time limits and restrictions.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/accumulation
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