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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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 Quality permits

Permits for industrial air pollution and burning activities.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Air-Quality-permits

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

Burn permits

Burn permits for agriculture, outdoor, or residential burning.

https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Air-Quality-permits/Burn-permits

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

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

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

Yahoo Data Center - Notice of Construction permit and technical support document

Notice of Construction permit and Technical Support Document for Yahoo Data Center, 5/25/16

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/Yahoo16AQ-E012

Yahoo Data Center - Draft Technical Support Document for Notice of Construction permit

Draft Technical Support Document for Notice of Construction permit for Yahoo Data Center, 2/5/16

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/YahooDraftTSD02052016

Yahoo Data Center - Health Impact Assessment

Health Impact Assessment (Second Tier Review) for Yahoo Data Center, 2/17/16

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/YahooGENESIShis02172016

Yahoo Data Center - Health Impact Assessment letter

Health Impact Assessment (Second Tier Review) Letter for Yahoo Data Center, 2/17/16

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/YahooGENESISTier2Ltr02172016

Yahoo Data Center - Notice of Construction permit

Notice of Construction permit for Yahoo Data Center, 3/28/11

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/yahoo-ord-11aq-e399

Yahoo Data Center - Draft Notice of Construction permit

Draft Notice of Construction permit for Yahoo Data Center, 2/5/16

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/YahooPD02052016

Yahoo Data Center - Notice of Construction application

Notice of Construction application (revised) for Yahoo Data Center, 12/23/15

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/YahooRevisedNOC12232015

Yahoo Data Center - Revised Risk Analysis

Risk Analysis for Yahoo Data Center (revised), 12/23/15

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/YahooRevisedRiskAnalysis12232015

Yahoo Data Center - Technical Support Document for Health Impact Assessment

Technical Support Document for Health Impact Assessment (Third Tier Review) for Yahoo Data Center, 2/8/11

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Yahoo-data-center/Yahoo-Tier3-TSD-2-8

Vantage Data Center - Health Impact Assessment Protocol

Methods and procedures to follow for a Health Impact Assessment (Second Tier Review) for Vantage Data Center, 3/7/16

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Vantage-data-center/Vantage-HIA-Protocol-030716ada

Vantage Data Center - Health Impact Assessment Recommendation

Health Impact Assessment (Second Tier Review) Recommendation for Vantage Data Center, 5/11/17

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Vantage-data-center/Vantage-HIARec-051117ada

Vantage Data Center - Air Dispersion Modeling Protocol

Protocol and methods for air dispersion modeling for a Notice of Construction application for Vantage Data Center, 2/25/16

https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Data-Centers/Vantage-data-center/Vantage-Modeling-Protocol-022516ada

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