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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Environmental Covenant for MSW and Limited Purpose Landfills

This is Ecology's official form for covenants with Washington's landfills.

https://ecology.wa.gov/environmental-covenant-for-msw-and-limited-purpose

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

Air Operating Permit Report for Fiscal Years 2024 and 2025, October 2023

This is the workload analysis and budget report for the Air Operating Permit Program for Fiscal Years 2024 and 2025, October 2023 version.

https://ecology.wa.gov/202310aopreportfy24

Vantage Data Centers approval order (notice of construction permit)

This is the October 5, 2022 air quality approval order (notice of construction permit) for Vantage Data Centers.

https://ecology.wa.gov/20221005vantagedatacenters22aqe009

Vantage Data Center approval order 19AQ-E026

This is the approval order, technical support document, and response to comments for Vantage Data Center in 2019.

https://ecology.wa.gov/20190710vantagedatacenter19aqe026

Vantage Data Centers agreed order 18AQ-E043 and tech support doc.

This is the September 2018 agreed order and technical support for Vantage Data Centers in Quincy.

https://ecology.wa.gov/20180910vantagedatacenter18aq-e043

Vantage Data Center, Quincy Agreed Order with TSD & R2C

This is the Agreed Order 16AQ-E026 for Vantage Data Center with the Technical Support Doc and the Response to Comments attached.

https://ecology.wa.gov/201712vantagequincyao16aq-e026-tsd-r2c

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/vantage-hiarec-051117ada

Vantage Data Center - Health Impact Assessment letter

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

https://ecology.wa.gov/vantage-tier2ltr-final-051117ada

Vantage Data Center - Revised Health Impact Assessment response

Revised Health Impact Assessment (Second Tier Review) response for Vantage Data Center, 11/16/16

https://ecology.wa.gov/vantage-revfinal-2ndtier-ra-111616ada

Vantage Data Center - Notice of Construction application

Notice of Construction application for Vantage Data Center, 8/10/16

https://ecology.wa.gov/vantage-noc-app-supprpt-081016ada

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/vantage-hia-protocol-030716ada

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/vantage-modeling-protocol-022516ada

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

Notice of Construction permit and Technical Support Document for Vantage Data Center, 3/18/13

https://ecology.wa.gov/vantagefinalpermit

Vantage Data Center - Health Impact Assessment Recommendation

Health Impact Assessment (Second Tier Review) Recommendation, 11/30/12

https://ecology.wa.gov/b-updated-vantage-tier2-recommendation-11302012