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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Cleanup Rule exploratory rulemaking process & timeline (as of January 2018)

A January 2018 notice of our exploratory process and timeline for updating Washington's Cleanup Rule.

https://ecology.wa.gov/noticecleanupruleexprmjan2018

QA planning process for NEP grantees

Printable and accessible PDF version of a flowchart showing the approval process for Quality Assurance Project Plans for National Estuary Program grantees.

https://ecology.wa.gov/nepqaflowchart

Rulemaking Adoption Notice (WAC 173-566) 06/25/2019

This is a rulemaking adoption (CR-103) for WAC 173-566 Streamflow Restoration Funding

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-566-06-25-201

Watershed Heatlh Monitoring randomly chosen sites from 2009 - 2017

Data tables for map here: https://waecy.maps.arcgis.com/apps/webappviewer/index.html?id=7b90d34357484848a46076ee220fbffc

https://ecology.wa.gov/table-watershed-health-random-sites

RAC Workshop Agenda (WAC 173-219) 11/30/15

Reclaimed Water Rulemaking Advisory Committee (RAC) Workshop Agenda - November 30, 2015

https://ecology.wa.gov/rac-agenda-wac-173-219-11-30-15

RAC Presentation (WAC 173-219) 11/03/14

Presentation from November 3, 2014 RAC Meeting for the Reclaimed Water Rulemaking

https://ecology.wa.gov/rac-presentation-wac-173-219-11-03-14

RAC Presentation (WAC173-219) 02/16/17

Reclaimed Water Rule Making Advisory Committee (RAC) - February 16, 2017 Meeting Presentation

https://ecology.wa.gov/rac-presentation-wac173-219-02-16-17

RAC Working Draft (WAC 173-219) 03/15/17

Reclaimed Water Rule Making Advisory Committee (RAC) - Working draft of rule language for March 15, 2015.

https://ecology.wa.gov/rac-working-draft-wac-173-219-03-15-17

Rulemaking Adoption Notice (WAC 173-219) 01/23/18

This is a rulemaking adoption (CR-103) for WAC 173-219 Reclaimed Water

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-219-01-23-18

SEPA Checklist and DNS

State Environmental Policy Act (SEPA), checklist, and Determination of Non-Significance (DNS)

https://ecology.wa.gov/sepa-checklist-and-dns-wac-173-219-01-23-18

Withdrawal Notice (WAC 173-219) Dec. 23, 2015

Withdrawal Notice for Proposal Notice Continuance filed on Aug. 17, 2015 and Proposal Notice filed on June 22, 2015

https://ecology.wa.gov/withdrawal-notice-wac-173-219-12-23-15

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

Underground injection control well registration requirements & information

Get Underground Injection Control (UIC) well registration requirements and information.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/uic-registration-requirements-information

401 Water Quality Certifications for federal facilities

EPA writes NPDES permits for federal facilities. We issue water quality certifications for permits.

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

Cannabis licensing and the environment

Environmental permits may be required for cannabis growers and processors.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-cannabis-businesses

Frequently flooded areas: Critical Areas Ordinance

Frequently flooded areas are covered by Critical Areas Ordinances promoting safety from floods.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-floodplains-critical-areas-ordinanc

WAC 173-166 Emergency drought relief

This is the rulemaking page for Chapter 173-166 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-166

Clean Water Act: Section 401 Water Quality Certifications

Under the Clean Water Act, we help make sure projects, actions, and activities don't harm state waters.

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

Industrial facility permits and regulation

We regulate air, water, and waste for most of the large industrial facilities in Washington.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits

Fish consumption rate: Technical support document

This 2013 technical support document estimates how much fish Washington residents are eating.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/fish-consumption-rates-technical-support