Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

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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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Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

Regulations & Permits icon

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...
Rulemaking Adoption Notice (WAC 173-201A) 03/22/22
This is a rulemaking adoption (CR-103) for WAC 173-201A Water Quality Standards
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-03-22-22
Rulemaking Adoption Notice (WAC 173-201A) 9/17/21
This is a rulemaking adoption (CR-103) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-9-17-21
Rulemaking Adoption Notice (WAC 173-224) 06/22/21
This is a rulemaking adoption (CR-103) for WAC 173-224 Water Quality Permit Fees
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-224-06-01-21
Rulemaking Adoption Notice (WAC 173-201A) 12/30/19
This is a rulemaking adoption (CR-103) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-12-30-19
Rulemaking Adoption Notice (WAC 173-230) 07/10/19
This is a rulemaking adoption (CR-103) for WAC 173-230 Certification of Wastewater Operators
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-230-07-10-19
Rulemaking Adoption Notice (WAC 173-201A) 1/23/19
This is a rulemaking adoption (CR-103) for WAC 173-201A Recreational Use Critera
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-1-23-19
Rulemaking Adoption Notice (WAC 173-201A) 08/01/16
This is a rulemaking adoption (CR-103) for WAC 173-201A Water quality standards for surface waters of the state of Washington.
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-08-01-16
ROADMAP summary
ROAD MAP (Regional Operations and Maintenance Program) includes Western Washington and Southwest Washington Permittees
https://ecology.wa.gov/revisedroadmapsummary
Rosemere vs. Ecology & Clark County - Pollution Control Hearings Board Ruling - Jan. 5, 2011
The Pollution Control Hearings Board (PCHB) issued a ruling on Jan. 5, 2011 that the Agreed Order #7273 entered in between Ecology and Clark County is unlawful.
https://ecology.wa.gov/rosemerevecy_clarkcopchbrulingjanuary52011
Rocky Mountain Compost Wattle letter.
A letter from Ecology stating this technology is equivalent to BMP C235..
https://ecology.wa.gov/rocky-mountain-compost-wattle
Rolanka BioDSiltTrap
the Rolanka BioDSiltTrap is functionally equivalent to BMP C235.
https://ecology.wa.gov/rolanka-biodsilttrap
RootSpace System for Stormwater Runoff Filtration
A letter from Ecology stating this technology is equivalent to a Bioretention Facility.
https://ecology.wa.gov/rootspace-system
Rubberform trackout mat
Letter about use of Rubberform Trackout Mat.
https://ecology.wa.gov/rubberform-trackout-mat
Aquatic Invasive Species Management General Permit Response to Comments
Response to Comments for the Aquatic Invasive Species Management General Permit.
https://ecology.wa.gov/rtc08082016
2018 Pretreatment Plan for RJ Seafoods
2018 pretreatment plans on control for commercial clam beds in Willapa Bay for RJ Seafoods.
https://ecology.wa.gov/rj-seafoods-2018-pretreatment-plan
Rulemaking Adoption Notice (WAC 173-224) 06/29/23
This is a rulemaking adoption (CR-103) for WAC 173-224 Water Quality Permit Fees
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-224-06-29-23
Rulemaking Adoption Notice (WAC 173-201A) 12/18/23
This is a rulemaking adoption (CR-103) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-12-18-23
Rulemaking Adoption Notice (WAC 173-201A) 08/14/24
This is a rulemaking adoption (CR-103) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-08-14-24
Rulemaking Adoption Notice (WAC 173-201A) 11/14/24
This is a rulemaking adoption (CR-103) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-11-14-24
Rulemaking Adoption Notice (WAC 173-201A) 11/27/24
This is a rulemaking adoption (CR-103) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-201a-2024
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