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...
Plan Holder Implementation Guidance
Rule implementation doc_Plan Holder Implementation Guidance
https://ecology.wa.gov/rule-implementation
TDG short term modification administrative order
Signed short term modification administrative order for total dissolved gas criteria
https://ecology.wa.gov/tdg-short-term-modification-administrative-order
Adopted rule language (WAC 173-910) 08/23/16
Thsi is adopted rule language for WAC 173-910 Mercury-Containing Lights Product Stewardship Program.
https://ecology.wa.gov/adopted-rule-language-wac-173-910-08-23-16
Rulemaking Announcement (WAC 508-14) 11/15/10
This is a rulemaking announcement (CR-101) for WAC 508-14 Columbia Basin project - Ground Waters
https://ecology.wa.gov/rulemaking-announcement-wac-508-14-11-15-10
Rulemaking Announcement (WAC 173-525)
This is a rulemaking announcement (CR-101) for Chapter 173-525 WAC Grays-Elochoman Instream Resources Protection and Water Management Program
https://ecology.wa.gov/rulemaking-announcement-wac-173-525
CR-101 Form (WAC 173-228) 07/05/17
This is a rulemaking announcement (CR-101) for WAC 173-228 Vessel Sewage No Discharge Zones
https://ecology.wa.gov/cr-101-form-wac-173-228-07-05-17
Rulemaking Announcement (WAC 173-491,400, 455) 07/02/13
This is a rulemaking announcement (CR-101) for Chapter 173-400 WAC General regulation for air pollution sources; Chapter 173-455 WAC Air quality fee regulation and Chapter 173-491 WAC Emission standards and controls for sources emitting gasoline vapors.
https://ecology.wa.gov/rulemaking-announcement-wac-173-491-400-455-07
Rulemaking Announcement (WAC 173-526) 03/02/05
This is a rulemaking announcement (CR-101) for WAC 173- Title; WAC XXX-XXX Title.
https://ecology.wa.gov/rulemaking-announcement-wac-173-526-03-02-05
Rulemaking Announcement (WAC 173-503A; 02/24/04
This is a rulemaking announcement (CR-101) for WAC 173-503A Instream Resources Protection Program Lower and Upper Skagit Water Resources Inventory Area (WRIAs 3 and 4)
https://ecology.wa.gov/rulemaking-announcement-wac-173-503a;-02-24-04
Part Five
Solid waste handling standars part 5
https://ecology.wa.gov/part-five
Ch173350_3rdPrelimDraft121516-PartFive.pdf
Part Five: 500 Groundwater monitoring, -600 Financial assurance requirements, -700 Permits and local ordinances, -710 Permit application and issuance, -715 General permit application requirements, -900 Remedial action, and -995 Soil and sediment use criteria.
https://ecology.wa.gov/ch173350_3rdprelimdraft121516-partfive-pdf
Addendum to Informal Draft Language
This addendum goes with the draft rule language for the informal comment period.
https://ecology.wa.gov/addendum-to-informal-draft-language
Adopted rule language (WAC 173-400) 10/25/18
This is adopted rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.
https://ecology.wa.gov/adopted-rule-language-wac-173-400-10-25-18
Adopted rule language (WAC 173-400) 08/16/18
This is adopted rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.
https://ecology.wa.gov/adopted-rule-language-wac-173-400-08-16-18
Agenda stakeholder mtg (WAC 173-400) 09/12/18
This is the agenda for the 9/12/18 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.
https://ecology.wa.gov/agenda-stakeholder-mtg-wac-173-400-09-12-18
Adopted rule language (WAC 173-423) 12/27/18
This is adopted rule language for Chapter 173-423 WAC, Low Emission Vehicles.
https://ecology.wa.gov/adopted-rule-language-wac-173-423-12-27-18
Adopted rule language (WAC 173-430) 04/12/19
This is adopted rule language for Chapter 173-430 WAC, Agricultural Burning.
https://ecology.wa.gov/adopted-rule-language-wac-173-430-04-12-19
2019 Draft Acceptable Source Impact Levels (ASIL) Options (WAC 173-460) 02/14/19
This is a 2/14/19 spreadsheet of options to update the list of acceptable source impact levels (ASIL) in Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollutants.
https://ecology.wa.gov/2019-draft-asil-options-wac-173-460-02-05-19
Adopted rule language (WAC 173-405) 04/23/19
This is adopted rule language for Chapter 173-405 WAC, Kraft Pulping Mills.
https://ecology.wa.gov/adopted-rule-language-wac-173-405-04-23-19
2019 Draft Labeling Options (WAC 173-443) 12/17/19
This is a 12/17/19 draft document about options for labeling products and equipment in Chapter 173-443 WAC, Hydrofluorocarbons.
https://ecology.wa.gov/2019-draft-labeling-options-wac-173-443-12-17-19
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