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.

See more about this collection...

UST-closure-packet

Instructions for closing an Underground Storage Tank

https://ecology.wa.gov/ust-closure-packet

Vapor Intrusion for TCE

EPA's Region 9 memo Vapor Intrusion response action levels

https://ecology.wa.gov/vi-tce-region-9-memo

Vapor Intrusion guidance for TCE

EPA's Region 10 memo Vapor Intrusion toxicity

https://ecology.wa.gov/vi-tce-region-10-memo

Rulemaking Announcement WAC 173-331 12/02/15

This is a rulemaking announcement (CR-101) for WAC 173-331 Vehicle Battery Recycling

https://ecology.wa.gov/rulemaking-announcement-wac-173-331-12-02-15

Pilot Use Level Technologies Notice of Intent (application) form

Local governments with a National Pollutant Discharge Elimination System (NPDES) permit must submit this Notice of Intent Form to Ecology, and receive Ecology’s approval prior to installing a pilot-designated technology (except in retrofit situations).

https://ecology.wa.gov/puldnoi

Response to Comments: Modification of RCRA WTP Lab Operations

Response to Comments: Modification of the Hanford Facility Resource Conservation and Recovery Act Permit for the Treatment, Storage, and Disposal of Dangerous Waste, Part III, Operating Unit Group 10 (WA7890008967) Waste Treatment and Immobilization Plant Analytical Laboratory Operations, 24590-LAB-PCN-ENV-16-002

https://ecology.wa.gov/response-to-comments

Statement of Basis for BCAA permitting conditions

STATEMENT OF BASIS HANFORD SITE AIR OPERATING PERMIT NO. 00-05-006 RENEWAL 3 ATTACHMENT 3: BENTON CLEAN AIR AGENCY PERMIT

https://ecology.wa.gov/statement-of-basis-for-bcaa-permitting-conditions

Monthly dangerous waste generation limits

Quantity exclusion limits (QEL) to determine monthly dangerous waste generator category

https://ecology.wa.gov/monthly-generation-limits-plain-text

Statement of Basis for Health permitting conditions

STATEMENT OF BASIS HANFORD SITE AIR OPERATING PERMIT NO. 00-05-006 RENEWAL 3 ATTACHMENT 2: DEPARTMENT OF HEALTH LICENSE

https://ecology.wa.gov/statement-of-basis-for-health-permitting-condition

Supporting Documents - Department of Health License Files

Supporting Documents from the Department of Health License Files

https://ecology.wa.gov/supporting-documents-department-of-health-licens

Supporting Documents - Ecology (PDF Portfolio)

Supporting Documents from Ecology

https://ecology.wa.gov/supporting-documents-ecology-pdf-portfolio

Transmittal Letter

Start of Public Comment Period for the Draft Hanford Site Air Operating Permit (AOP) Renewal 3

https://ecology.wa.gov/transmittal-letter-d05b7b46ed7eb953d4597627837c8259

Boatyard general permit SWPPP template

Example template of a Stormwater Pollution Prevention Plan (2012) This template was prepared by the Northwest Marine Trade Association (NMTA) for use by its boatyard members. NMTA has granted the Department of Ecology permission to make this form available to all interested parties.

https://ecology.wa.gov/swppptemplate

Boatyard general permit SWPPP Worksheets

Examples of Stormwater Pollution Plan Worksheets (2007)

https://ecology.wa.gov/swpppworksheets

Pharmaceutical waste regulations webinar

PDF version of the Pharmaceutical Waste Regulations webinar conducted by Ecology's health care team January 2021

https://ecology.wa.gov/webinar-pharmawaste-slides-2021

401 Water Quality Certifications for hydropower licenses

We work with the Federal Energy Regulatory Commission (FERC) licensing process for hydropower dams.

https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/certifications-for-hydropower-licenses

Heat pump & air conditioning return flow UIC wells

Groundwater circulated through a heat pump/air conditioning (HAC) system has to meet requirements.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/heat-pump-air-conditioning-return-flow-wells

Managing pharmaceutical waste

Learn how to manage waste pharmaceuticals properly to keep them out of the environment.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste

Pharmaceutical waste management options for eligible facilities

Facilities that meet certain criteria can use pharmaceutical waste management options.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste/management-options

Frequently asked questions about pharmaceutical waste

Frequently asked questions about pharmaceutical waste and our answers.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste/frequently-asked-questions