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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Masonry heaters that meet Washington standards, October 10, 2016

This is the October 10, 2016 list of masonry heaters that meet Washington standards.

https://ecology.wa.gov/20161010masonryheaters

Pacific Northwest Volkswagen (VW) Zero-Emissions Vehicle (ZEV) Investment Proposal

Investment proposal for Pacific Northwest Volkswagen (VW) Zero-Emissions Vehicle (ZEV)

https://ecology.wa.gov/20161223pnwzevinvestmentproposal

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

Microsoft Oxford Data Center - Legal Notice

Legal notice for Microsoft Oxford, 11/3/16

https://ecology.wa.gov/mwh-legalnotice-11032016

Microsoft Oxford Data Center - Legal Notice

Legal notice for Microsoft Oxford Data Center, 10/6/16

https://ecology.wa.gov/mwh-legal-10062016

Microsoft Oxford Data Center - Health Impact Assessment letter

Health Impact Assessment (Second Tier Review) Letter for Microsoft Oxford Data Center, 9/27/16

https://ecology.wa.gov/mwh-tier2ltr-09272016

Microsoft Oxford Data Center - Health Impact Assessment (second revised)

Second Revised Health Impact Assessment for Microsoft Oxford Data Center, 9/27/16

https://ecology.wa.gov/mwh-hiarec-09272016

Appendix 1 to the Phase I Municipal Stormwater Permit

Minimum Technical Requirements or New Development and Redevelopment

https://ecology.wa.gov/2016phasei-appendix1

Phase I Municipal Stormwater Permit Appendi10

Appendix 10. Equivalent Programs for Runoff Controls for New and Redevelopment and Construction Sites

https://ecology.wa.gov/2016phasei-appendix10

Phase I Municipal Stormwater Permit Appendix 11

Appendix 11. Structural Stormwater Controls Project List

https://ecology.wa.gov/2016phasei-appendix11

Phase I Municipal Stormwater Permit Appendix 12

Appendix 12. Annual Report Questions for Cities and Counties

https://ecology.wa.gov/2016phasei-appendix12

Phase I Municipal Stormwater Permit Appendix 13

Appendix 13. Adaptive Management Requirements

https://ecology.wa.gov/2016phasei-appendix13

Phase I Municipal Stormwater Permit Appendix 2

Appendix 2. Total Maximum Daily Load Requirements

https://ecology.wa.gov/2016phasei-appendix2

Phase I Municipal Stormwater Permit Appendix 3

Appendix 3. Annual Report Questions for the Port of Seattle and the Port of Tacoma

https://ecology.wa.gov/2016phasei-appendix3

Phase I Municipal Stormwater Permit Appendix 4

Appendix 4. Annual Report Questions for Secondary Permittees

https://ecology.wa.gov/2016phasei-appendix4

Phase I Municipal Stormwater Permit Appendix 5

Appendix 5. Notice of Intent for Coverage

https://ecology.wa.gov/2016phasei-appendix5

Phase I Municipal Stormwater Permit Appendix 6

Appendix 6. Street Waste Disposal

https://ecology.wa.gov/2016phasei-appendix6

Phase I Municipal Stormwater Permit Appendix 7

Appendix 7. Determining Construction Site Sediment Damage Potential

https://ecology.wa.gov/2016phasei-appendix7

2015 Draft Construction Stormwater General Permit

National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit for Stormwater Discharges Associated with Construction Activity.

https://ecology.wa.gov/2016cswgpdraft

2015 Draft Construction Stormwater General Permit with Track Changes

National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit for Stormwater Discharges Associated with Construction Activity.

https://ecology.wa.gov/2016cswgpdraftredline