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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CyrusOne notice of construction (NOC) application

This is the air quality notice of construction application for CyrusOne Data Center in Quincy.

https://ecology.wa.gov/20240509cyrusonenocapp

Air Operating Permit Report for Fiscal Years 2026 and 2027, June 2024

This is the workload analysis and budget report for the Air Operating Permit Program for Fiscal Years 2026 and 2027, June 2024 version.

https://ecology.wa.gov/202406aopreportfy26

H5 Data Centers notice of construction (NOC) application

This is the air quality notice of construction application for H5 Data Centers in Quincy.

https://ecology.wa.gov/20240402h5nocapprev