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...

1887 results

CAFO Annual report form

Concentrated animal feeding operation annual report form

https://ecology.wa.gov/annual-report-form

Adopted Rule Language (WAC 173-201A) 12/30/19

This is adopted rule language for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/adopted-rule-language-wac-173-201a-12-30-19

Adopted Rule Language (WAC 173-224) 06/22/21

This is adopted rule language for WAC 173-224 Water Quality Permit Fees

https://ecology.wa.gov/adopted-rule-language-wac-173-224-06-22-21

Adopted rule language (WAC 173-201A) 09/17/21

This is adopted rule language for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/adopted-rule-language-wac-173-201a-09-17-21

Adopted rule language (WAC 173-230) 07/10/19

This is adopted rule language for WAC 173-230 Certification of Wastewater Operators

https://ecology.wa.gov/adopted-rule-language-wac-173-230-07-10-19

Adoption Notice - Focus sheet

This is a rulemaking adoption focus sheet for WAC 173-230 AO 18-02 Wastewater Operator Certification

https://ecology.wa.gov/announcement-focus-sheet

Baffle Funtional Equivenlancy Letter

Letter showing Baffles are functionally equivenant.

https://ecology.wa.gov/aflbafflefel

Adopted Rule language (WAC 173-201A) 1/23/19

This is the adopted rule language for Chapter 173-201A WAC (recreation use criteria).

https://ecology.wa.gov/ots-adopted-rule-language

Agreed Order 7273

The Pollution Control Hearings Board (PCHB) issued a ruling on January 5, 2011 that the Agreed Order #7273 entered in between Ecology and Clark County is unlawful

https://ecology.wa.gov/agreedorder7273

Aquatic Invasive Species General Permit

The Aquatic Invasive Species General Permit covers the in-water treatment of aquatic invasive animal species and nonnative invasive marine algae. This permit will allow for the treatment of early infestations and for small localized projects that may lead to the eradication or containment of invasive species.

https://ecology.wa.gov/aipermit08082016

Aquatic Invasive Species Management General Permit application (Notice of intent)

Aquatic Invasive Species Management General Permit Notice of Intent (NOI)

https://ecology.wa.gov/aisgp-noi

Aquatic Invasive Species Management General Permit Notice Template

Permit Notice Template for the Aquatic Invasive Species Management General Permit.

https://ecology.wa.gov/aisgpnoticetemplate

Aquatic Invasive Species Management General Permit Shoreline Posting Template

Shoreline Posting Template for the Aquatic Invasive Species Management General Permit.

https://ecology.wa.gov/aisgpshorelinepostingtemplates

Aquatic Mosquito Control General Permit

The Aquatic Mosquito Control Permit is an important tool to protect public health and the environment. It protects water quality and allows spraying for both nuisance and disease-carrying mosquitoes. It allows mosquito control districts, local government and others to legally spray to control larvae and adult mosquitoes.

https://ecology.wa.gov/amcgppermit2015

Aquatic Mosquito Control General Permit Public Notice Instructions and Template

Instructions for new applicants applying for permit coverage on how to comply with public notice requirements

https://ecology.wa.gov/amcgp-public-notice-instructions

Reissuence Agenda

2017 municiple agenda

https://ecology.wa.gov/agenda

Adopted rule language (WAC 173-224) 06/29/23

This is adopted rule language for WAC 173-224 Water Quality Permit Fees

https://ecology.wa.gov/adopted-rule-language-wac-173-224-06-29-23

Adopted rule language (WAC 173-201A) 12/18/23

This is adopted rule language for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/adopted-rule-language-wac-173-201a-12-18-23

Adopted rule language (WAC 173-201A) 08/14/24

This is adopted rule language for WAC 173-201 Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/adopted-rule-language-wac-173-201a-08-14-24

Adopted Rule Language (WAC 173-201A) 11/14/24

This is adopted rule language for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/adopted-rule-language-wac-173-201a-11-14-24