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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H5 Data Center notice of construction (NOC) permit

This is the 2022 air quality notice of construction permit (approval order) for H5 Data Center.

https://ecology.wa.gov/20220309h5nocpermit

Microsoft Columbia 2022 Notice of Construction Application

This is the 2022 air quality notice of construction application for Microsoft Columbia in Quincy.

https://ecology.wa.gov/20220312microsoftcolumbianocapp

Vantage Data Center Notice of Construction (NOC) application, March 24, 2022

This is the March 24, 2022 notice of construction application for Vantage Data Center.

https://ecology.wa.gov/20220324vantagenocapp