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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Regional Haze SIP revision 10-2021

Regional Haze SIP revision October 2021

https://ecology.wa.gov/20211018-regional-haze-sip-revision

DES leased vehicle fuel use by agency

Reporting tool for DES leased vehicle fuel use by agencies

https://ecology.wa.gov/2021-des-leasedvehiclefueluseagency

DES Permanent Assigned Vehicle and Daily Trip Vehicle Fuel Use

DES calculator for reporting permanent vehicle and daily trip fuel use.

https://ecology.wa.gov/2021-despermvehicle-dailyvehiclefueluse

Transcript of the "Helping your community help small businesses" audio blog

The Pollution Prevention Assistance program (PPA) helps businesses and organizations partner with local authorities to ensure they're effectively and efficiently meeting all their obligations.

https://ecology.wa.gov/20210820-ppa-audio-transcript

Air Operating Permit Report for Fiscal Years 2022 and 2023, updated November 2021

This is the workload analysis and budget report for the Air Operating Permit Program for Fiscal Years 2022 and 2023, updated November 2021.

https://ecology.wa.gov/202111aopreportfy22

Transcript of the "Replacing toxic products with safer alternatives" audio blog

The vast majority of chemicals that seep into peoples' bodies and the environment come not from factories or treatment facilities, but from the very products and services people buy and use every day.

https://ecology.wa.gov/20210820-prp-audio-transcript

Sabey Intergate 2022 Notice of Construction Application

This is the 2022 Notice of Construction Application for Sabey Intergate Data Center in Quincy.

https://ecology.wa.gov/20211214sabeyquincybuildingenocapp

H5 Data Center Preliminary Determination

This is the draft preliminary determination for H5 Data Center

https://ecology.wa.gov/20211110h5draftpreldet

H5 Data Center Notice of Construction Application

This is the notice of construction application for H5 Data Center

https://ecology.wa.gov/20211110h5nocapp

H5 Data Center Health Impact Assessment Report

This is the Health Impact Assessment Report for H5 Data Center

https://ecology.wa.gov/20211110h5healthimpactassessment

H5 Data Center Notice of Construction Application DOE

This is the notice of construction application for H5 Data Center from Ecology

https://ecology.wa.gov/20211110h5nocappdoe

H5 Data Center Health Impact Assessment Recommendation

This is the Health Impact Assessment Recommendation for H5 Data Center

https://ecology.wa.gov/20211110h5tier2hiarec

H5 Data Center Tier 2 Letter

This is the Tier 2 letter for H5 Data Center

https://ecology.wa.gov/20211110h5tier2ltr