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.
Chapter 173-305 WAC
This is the rulemaking page for Chapter 173-305 WAC
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-305
WAC 173-337 – Safer Products Restrictions and Reporting
This is the rulemaking page for Chapter 173-337 WAC
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-337-nov2023
Chapter 173-337 WAC – Safer Products Restrictions and Reporting
This is the rulemaking page for Chapter 173-337 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-337-may2023
Dangerous waste reporting requirements
Learn about dangerous waste reports, and how to notify us of dangerous waste activities.
https://ecology.wa.gov/regulations-permits/reporting-requirements/dangerous-waste-reporting-requirements
Dangerous waste guidance
Businesses in Washington that generate dangerous waste must follow the Dangerous Waste Regulations.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance
Counting dangerous waste
Learn how to count your business's dangerous waste and determine your generator category.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/counting-dangerous-waste
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
Dangerous waste containers
Keep your workers safe by keeping your dangerous waste containers closed and in good condition.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/proper-containment
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
Recordkeeping
Learn what records your business must keep if you generate dangerous waste.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/recordkeeping
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
Financial assurance types
Different types of facilities must provide different types of financial assurance.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dispose-recycle-or-treat/financial-assurance/types
Step one: Get ready to designate
Learn what you need to start designating your waste.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/get-ready-to-designate
Small quantity generators (SQGs)
Learn about the benefits and rules for dangerous waste small quantity generators (SQGs).
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/generator-category/small-quantity-generators
Step two: Is it exempt or excluded?
Determine if your waste is excluded from the dangerous waste regulations.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/is-it-exempt-or-excluded
Financial assurance updates
Cost estimates for financial assurance need to be adjusted every year for inflation.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dispose-recycle-or-treat/financial-assurance/updates
Step three: Is it listed?
Determine if your waste is on the F, K, P, or U lists in the regulations.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/is-it-listed
Step four: What are the hazards (characteristics)?
Determine if your waste is ignitable, corrosive, reactive, or toxic.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/what-are-the-hazards-characteristics
Step five: Check Washington state-only criteria
Learn how to determine if your waste meets Washington state-only dangerous waste criteria.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/check-washington-state-only-criteria
Dangerous waste treatment by generator
Learn how your business may be allowed to treat your own dangerous waste on-site.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dispose-recycle-or-treat/treatment-by-generator
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