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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Solid Waste Handling Standards Rule - Chapter 173-350 WAC

2018 Solid Waste Conference presentation on solid waste handling standards rule changes

https://ecology.wa.gov/350-changes-presentation

Section Manager

Draft report to the Legislature that provides recommendations for cannabis lab accreditation.

https://ecology.wa.gov/cannabis-lab-accreditation-report

Inslee statement on Clean Air Rule decision

Statement by Gov. Jay Inslee on 1-16-20 related to the Supreme Court ruling on the Clean Air Rule.

https://ecology.wa.gov/inslee-statement-on-clean-air-rule-decision

Chehalis flood reduction project draft EIS presentation

Presentation of draft EIS for Chehalis Basin flood-reduction project

https://ecology.wa.gov/chehalis-draft-sepa-eis-presentation

Cannabis Lab Accreditation Webinar Slides, 10-25-2018

Slide deck from outreach event about the draft legislative report on the accreditation of cannabis laboratories.

https://ecology.wa.gov/cannabis-labs-webinar-slide-deck-no-audio

A User's Guide to Compost: The Beauty of Your Lawn and Garden Blossoms from the Soil

A composting guide aimed at homeowners.

https://ecology.wa.gov/a-user-s-guide-to-compost-the-beauty-of-your-lawn

Best-Practices-Commingled-Recycling

Best management practices for commingled residential recycling

https://ecology.wa.gov/bmp-commingled

Cannabis Lab Report

Overview of Ecology's 2019 report to the Legislature on the state's cannabis lab accreditation program.

https://ecology.wa.gov/cannabis-lab-report-overview

Building Soil: Guidelines and Resources for Implementing Soil Quality and Depth BMP T5.13

Best management practices for composting and soil management.

https://ecology.wa.gov/building-soil-guidelines-and-resources-for-implem

Douglas County solid waste service level ordinance

A sample ordinance from Douglas County outlining minimum service levels for solid waste.

https://ecology.wa.gov/douglas-county-solid-waste-service-level-ordinance

Plan to improve cannabis lab accreditation

Ecology's overview of their plan to move cannabis lab accreditation to Ecology from the Liquor and Cannabis Board.

https://ecology.wa.gov/plan-for-cannabis-labs

ECY to Pend Oreille County regarding SEPA lead request

ECY response to Pend Oreille County Commissioners' letter requesting Ecology take the lead agency role in Environmental review of PacWest Silicon’s proposal

https://ecology.wa.gov/ecy-to-po-commissoners_lead-ag_july2018

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

Feedstocks composted 2010 - 2016

Excel file showing feedstocks composted (tons) 2010-16.

https://ecology.wa.gov/feedstocks-composted-chart-2010-15-plain-text

Food composted chart plain text - 2010-15

Excel file version of food composted chart for 2010-15

https://ecology.wa.gov/food-composted-chart-plain-text-2010-15

7Q10 for High Flows on the Columbia/Snake Rivers

Guidelines for arriving at 7Q10 for dissolved gas standards.

https://ecology.wa.gov/7q10forhighflows