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.
1107 results 1 - 20 of 1107   Next page
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.
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.
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.
Regulating facilities that handle mixed waste in Washington State
Ecology regulates low-level mixed waste facilities in Washington.
Solid waste facility permits
Learn which facilities are required to get solid waste permits in Washington.
Vessel Deconstruction General Permit
This permit defines requirements for pollution prevention while dismantling vessels.
Voluntary certification program membership for tank vessel spill prevention
Our voluntary spill-prevention certification programs (VBAP and ECOPRO) improve the safety of Washington waters.
Wastewater Operator Certification Program
We assure wastewater treatment plant operators are competent, trained, and certified.
Winery general permit
The winery general permit helps prevent possible pollution problems from winery wastewater.
Overview of permitting & certifications
Find information on how to get a permit or certification from Ecology.
Air Quality permits
Permits for industrial air pollution and burning activities.
Sand & Gravel General Permit history
Find historical information about our Sand and Gravel General Permit.
Municipal stormwater general permits
This permit covers urban areas that collect stormwater runoff in public storm sewer systems.
1107 results 1 - 20 of 1107   Next page