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.
H5 Data Center Tier 2 Letter
This is the Tier 2 letter for H5 Data Center
https://ecology.wa.gov/20211110h5tier2ltr
H5 Data Center Technical Support Document
This is the Technical Support Document for H5 Data Center
https://ecology.wa.gov/2021h5tsd
H5 Data Centers notice of construction (NOC) application and supporting information
This is the air quality notice of construction application and supporting information for H5 Data Centers in Grant County, near Quincy.
https://ecology.wa.gov/20211110h5revnocapp
Overview of permitting & certifications
Find information on how to get a permit or certification from Ecology.
https://ecology.wa.gov/regulations-permits/permits-certifications/overview-of-permitting
Clean Water Act: Section 401 Water Quality Certifications
Under the Clean Water Act, we help make sure projects, actions, and activities don't harm state waters.
https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification
Air quality permits
Permits for industrial air pollution and burning activities.
https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits
Aquatic pesticide permits
Find information about the various aquatic pesticide permits used in our state.
https://ecology.wa.gov/regulations-permits/permits-certifications/aquatic-pesticide-permits
Certified water right examiner certification
We share information to help you gain or maintain your certified water right examiner certification.
https://ecology.wa.gov/regulations-permits/permits-certifications/certified-water-right-examiner
Washington's biosolids permit system
Help for operators with permit applications, and those managing permit coverage, including modifications.
https://ecology.wa.gov/regulations-permits/permits-certifications/biosolids-permit-system
Bridge & Ferry Terminal Washing Permit
This permit protects water from cleaning and painting activities at bridges and ferry terminals.
https://ecology.wa.gov/regulations-permits/permits-certifications/bridge-and-ferry-terminal-washing-permit
Certification for incinerator & landfill operators
How to get certified to operate and inspect solid waste incinerator and landfill facilities.
https://ecology.wa.gov/regulations-permits/permits-certifications/certification-for-incinerator-landfill-operator
Combined sewer overflows
We're working to control combined sewer overflows to keep water clean.
https://ecology.wa.gov/regulations-permits/permits-certifications/combined-sewer-overflows
Cruise ships in Washington waters
Formal agreement with cruise ship companies helps prevent pollution and protect marine waters.
https://ecology.wa.gov/regulations-permits/permits-certifications/cruise-ship-memorandum-of-agreement-mou
Dam permits
Construction or reservoir permits may be required for your project.
https://ecology.wa.gov/regulations-permits/permits-certifications/dam-safety-permit
EPA Vessel General Permit
Find out about the EPA Vessel General Permit and tap into helpful resources.
https://ecology.wa.gov/regulations-permits/permits-certifications/epa-vessel-general-permit-graywater
Hanford dangerous waste & mixed waste permits
Permits direct cleanup to protect people and the environment from dangerous waste at Hanford.
https://ecology.wa.gov/regulations-permits/permits-certifications/hanford-federal-facility-permits
Training and certification for facilities
Well-trained facility staff are critical for an effective spill prevention program.
https://ecology.wa.gov/regulations-permits/permits-certifications/facilities-training-certification
Fresh Fruit Packing General Permit
Find out about the Fresh Fruit Packing General Permit and get helpful resources.
https://ecology.wa.gov/regulations-permits/permits-certifications/fresh-fruit-packing-general-permit
Industrial facility permits and regulation
We regulate air, water, and waste for most of the large industrial facilities in Washington.
https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits
Puget Sound Nutrient General Permit
We have issued the first Nutrient General Permit for WWTPs that discharge to Puget Sound.
https://ecology.wa.gov/regulations-permits/permits-certifications/nutrient-permit
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