Regulations & Permits

We oversee many state and federal laws designed to protect Washington's land, air, and water. Rules and regulations that direct state agencies, local governments, businesses, and others on how to comply with relevant laws are compiled in the Washington Administrative Code. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.
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Certification for incinerator & landfill operators
How to get certified to operate and inspect solid waste incinerator and landfill facilities.
Certified water right examiner certification
We share information to help you gain or maintain your certified water right examiner certification.
Combined sewer overflows
We're working to control combined sewer overflows to keep water clean.
Cruise ships in Washington waters
Formal agreement with cruise ship companies helps prevent pollution and protect marine waters.
Dam permits
Construction or reservoir permits may be required for your project.
EPA Vessel General Permit
Find out about the EPA Vessel General Permit and tap into helpful resources.
Training and certification for facilities
Well-trained facility staff are critical for an effective spill prevention program.
Fresh Fruit Packing General Permit
Find out about the Fresh Fruit Packing General Permit and get helpful resources.
Hanford dangerous waste & mixed waste permits
Permits direct cleanup to protect people and the environment from dangerous waste at Hanford.
Industrial facility permits and regulation
We regulate air, water, and waste for most of the large industrial facilities in Washington.
Clean Water Act — Section 401 Water Quality Certifications
Under the Clean Water Act, we make decisions about hydropower licenses and non-hydropower projects.
Aquatic pesticide permits
Find information about the various aquatic pesticide permits used in our state.
Bridge & Ferry Terminal Washing Permit
This permit protects water from cleaning and painting activities at bridges and ferry terminals.
Regulating facilities that handle mixed waste in Washington State
Ecology regulates low-level mixed waste facilities in Washington.
Shoreline permits & enforcement
We support local governments in administering and enforcing shoreline permits.
Solid waste facility permits
Learn which facilities are required to get solid waste permits in Washington.
Stormwater general permits
We issue permits to protect lakes, rivers, and saltwater from polluted stormwater runoff.
Sand & Gravel General Permit
This permit covers sand and gravel operations, rock quarries, and concrete and asphalt batch plants.
Upland Fin-Fish Hatching & Rearing General Permit
Find information and apply for the Upland Fin-Fish Hatching & Rearing General Permit.
Vessel Deconstruction General Permit
This permit defines requirements for pollution prevention while dismantling vessels.
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