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.

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Online tool: Air Permit Search

Search the air quality permit library for Prevention of Significant Deterioration (PSD) and Air Operating Permits (AOP).

https://ecology.wa.gov/online-tool-air-permit-search

Air quality permits

Permits for industrial air pollution and burning activities.

https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits

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

Air operating permit for large sources of air pollution

Air operating permit requirements for large sources of air pollution.

https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits/air-operating-permits

General orders for air quality permits

A general order is a streamlined group permit for common commercial sources of air pollution.

https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits/air-quality-general-orders

Burn permits

Burn permits for agricultural, outdoor, or residential burning.

https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits/burn-permits

Notice of construction permit

Businesses must get a permit before installing or changing a source of air pollution.

https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits/notice-of-construction-permit

Prevention of Significant Deterioration (PSD) permit

Prevention of Significant Deterioration (PSD) permits for major sources of air pollution.

https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits/prevention-of-significant-deterioration-psd

Permit Register

The Permit Register includes actions or changes to air operating permits.

https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits/air-operating-permits/permit-register

Health impact review of toxic air pollution

We must review new projects that emit toxic air pollutants.

https://ecology.wa.gov/regulations-permits/permits-certifications/air-quality-permits/notice-of-construction-permit/health-impact-assessments-of-toxic-air-pollutants

Online tool: Air Quality Application Portal (login required)

(SAW account required)

https://ecology.wa.gov/air-quality-application-portal

Hanford Air Operating Permit (00-05-006 Renewal 2 - Revision B)

See a listing of all the federal facility permits that direct our work on the treatment, storage and disposal of dangerous and mixed wastes.

https://ecology.wa.gov/hanford-federal-facility-permits-aop

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

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

Bale Burn BMP

This is the best management practice (BMP) for bale burns, valid through June 30, 2024.

https://ecology.wa.gov/230701balebmp

Cereal Grain BMP

This is the best management practice (BMP) for cereal grain, valid through June 30, 2024.

https://ecology.wa.gov/20230701cerealbmp

Table of ASIL, SQER, and de minimis emission values – WAC 173-460-150 (Effective 12-23-2019)

This is the 12/23/19 sortable table of toxic air pollutants (TAPs) listed in Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollutants.

https://ecology.wa.gov/table-of-asil-sqer-and-de-minimis-emission-value

Non-Cereal BMP

This is the best management practice (BMP) for non-cereal grain, valid through June 30, 2024.

https://ecology.wa.gov/20230701noncerealbmp

Orchard crops BMP

This is the best management practice (BMP) for orchard crops, valid through June 30, 2024.

https://ecology.wa.gov/20230701orchardbmp