Search Results - Washington State Department of Ecology

Chapter 173-201A WAC (Human Health Criteria)

This is the rulemaking page for Chapter 173-201A WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-201a-hhc

Chapter 173-201A WAC (Salmon Spawning Habitat)

This is the rulemaking page for Chapter 173-201A WAC for salmon spawning habitat.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac173-201a-salmon-spawning-habitat

Chapter 173-167 WAC, Emergency Drought Funding (2025)

Ecology adopted another Emergency Drought Funding Rule Aug. 7, 2025, under chapter 173-167 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-167-2025

Chapters 173-507, 173-508, 173-513, 173-514, and 173-515 WAC – Instream Resources Protection Program

This is the rulemaking page for Chapters 173-507, 173-508, 173-513, 173-514, and 173-515 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-507-508-513-514-515-watershed-restoration

Monthly committee meeting

Public Event: Nov. 12, 2025, 9 a.m., in Lacey, WA and Online webinar
The Washington Natural Resource Damage Assessment (RDA) Committee meets monthly to determine the most appropriate method for assessing environmental injury from oil spills into state waters.

https://ecology.wa.gov/events/spills/natural-resource-damage-assessment-committee/november-2025

Monthly committee meeting

Public Event: Dec. 10, 2025, 9 a.m., in Lacey, WA and Online webinar
The Washington Natural Resource Damage Assessment (RDA) Committee meets monthly to determine the most appropriate method for assessing environmental injury from oil spills into state waters.

https://ecology.wa.gov/events/spills/natural-resource-damage-assessment-committee/december-2025

Cap-and-Invest: Comment on EITE allowance allocation

Comment Period: May 5, 2025, 1:31 p.m. - Sept. 3, 2025, 12:01 a.m.
Provide comment on Ecology’s report to the Legislature on how no-cost allowances are allocated to Emission-Intensive Trade-Exposed Industries (EITEs) from 2035-2050.

https://ecology.wa.gov/events/cpr/eite-report-to-leg/eite-leg-report

Darigold Inc. - Lynden

Comment Period: Oct. 1, 2025, 12 a.m. - Oct. 31, 2025, 11:59 p.m.
We invite your comments on draft NPDES permit no. WA0002470

https://ecology.wa.gov/events/wq/npdes-discharge-permit/darigold-lynden

Sustainable Aviation Fuel Programmatic Environmental Impact Statement scoping

Public Event: Oct. 21, 2025, 1 p.m., in Online webinar

https://ecology.wa.gov/events/sea/clean-energy-coordination/sustainable-aviation-fuel-programmatic-environmental-impact-statement-scoping-meeting-1

Sustainable Aviation Fuel Programmatic Environmental Impact Statement scoping

Public Event: Oct. 22, 2025, 9 a.m., in Online webinar

https://ecology.wa.gov/events/sea/clean-energy-coordination/sustainable-aviation-fuel-programmatic-environmental-impact-statement-scoping-meeting-2

Organics management rulemaking

Public Event: Nov. 5, 2025, 2 p.m., in Online webinar
We invite you to join us for our third public meeting about organics management rulemaking.

https://ecology.wa.gov/events/swm/organics-rulemaking/organics-rulemaking-public-meeting-3

Organics management rulemaking

Comment Period: Oct. 21, 2025, 12 a.m. - Nov. 21, 2025, 11:59 p.m.
We invite you to review and comment on the draft language for the organics management rulemaking.

https://ecology.wa.gov/events/swm/organics-rulemaking/organics-rulemaking-informal-comment-period

Chapters 173-424 and 173-455 WAC – Clean Fuels Program

This is the rulemaking page for Chapters 173-424 and 173-455 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-424-455

Chapter 173-501 WAC

On May 27, 2020, Ecology adopted amendments to Chapter 173-501 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-501

Chapter 173-443 WAC Hydrofluorocarbons

This is the rulemaking page for Chapter 173-443 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-443-hydrofluorocarbons

Chapter 173-158 WAC, Flood Plain Management

This is the rulemaking page for Chapter 173-158 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-158

Chapter 173-337 WAC – Safer Products Restrictions and Reporting

This is the rulemaking page for Chapter 173-337 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-337-may2023

Chapter 173-455 WAC – Air Quality Fee Rule

This is the rulemaking page for Chapter 173-455 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-455

Chapter 173-910 WAC - Mercury Lights Stewardship

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-910

Chapters 173-443 and 173-455 WAC – Hydrofluorocarbons (HFCs)

This is the rulemaking page for Chapters 173-443 and 173-455 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-443-455

Chapters 173-425, 173-430, and 173-400 WAC, Flame Cap Kilns and Air Curtain Incinerators

This is the rulemaking page for Chapters 173-425, 173-430, and 173-400 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-425-430-400

Chapter 173-26 and 173-27 WAC, Shoreline Management Act

This is the rulemaking page for Chapter 173-26 WAC, Chapter 173-27 WAC

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-26-27-shoreline-management-act

Chapter 173-446 WAC – Cap-and-Invest Offsets - Ozone Depleting Substance Protocol

This is the rulemaking page for Chapter 173-446 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-446-offsets

Chapter 173-201A WAC (Chelan UAA)

This is the rulemaking page for Chapter 173-201A WAC (Chelan UAA)

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac173-201a-chelan-uaa

Chapter 173-443 WAC – Hydrofluorocarbons (HFCs)

On Dec. 10, 2020, Ecology adopted a new rule, Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac173-443

Chapter 173-201A WAC (Variances)

This is a rulemaking page for Chapter 173-201A WAC for variances in Spokane River.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac173-201a-variances

Chapters 173-400 and 173-401 WAC, General Regulations for Air Pollution Sources

This is the rulemaking page for Chapters 173-400 and 173-401 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-400-401-air-pollution-sources

Chapter 173-350 WAC - Organics Management

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-350

Organics management rulemaking

Public Event: Nov. 5, 2025, 12 p.m., in Online webinar
We invite you our Environmental Justice listening session about organics management rulemaking.

https://ecology.wa.gov/events/swm/organics-rulemaking/organics-rulemaking-ej-listening-session

Chapter 173-339 WAC – Cosmetic Products Restrictions (Lead in Cosmetics)

This is the rulemaking page for Chapter 137-339 WAC (Lead in Cosmetics).

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-339-lead-in-cosmetics

Chapter 173-217 WAC – State Waters Alteration Permit

This is the rulemaking page for Chapter 173-217 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-217

Draft NPDES water quality permit

Public Event: March 4, 2025, 5:30 p.m., in Online webinar
We invite you to review and comment on the draft National Pollutant Discharge Elimination System Waste Discharge (NPDES) permit for Georgia-Pacific Camas Mill in Camas (Clark County).

https://ecology.wa.gov/events/swm/georgia-pacific-camas/npdes-water-quality-permit-mar4-webinar

Webinar #4: Fastening the Textile Community

Public Event: May 15, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/textile-webinar-series/textile-webinar-may-15-2025

Webinar #2: Ripping the Stitch

Public Event: May 8, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/textile-webinar-series/textile-webinar-may-8-2025

Webinar #3: Hemmed in to Cutting Loose

Public Event: May 13, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/textile-webinar-series/textile-webinar-may-13-2025

Shoreline Management Act Environmental Justice listening session

Public Event: July 24, 2025, 12 p.m., in online webinar
This is an opportunity for you to hear about the preliminary draft for the rulemaking and provide informal feedback to us.

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/shoreline-management-act-environmental-justice-listening-session

August Virtual Open House

Public Event: Aug. 19, 2025, 6 p.m., in online webinar
Join our Virtual Open House on August 19 from 6 p.m. - 7 p.m.

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/virtualopenhouseaugust19

October Virtual Open House

Public Event: Oct. 21, 2025, 6 p.m., in online webinar
Join our Virtual Open House on October 21 from 6 p.m. - 7 p.m.

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/octobervirtualopenhouse

December Virtual Open House

Public Event: Dec. 16, 2025, 6 p.m., in online webinar
Join our Virtual Open House on December 16 from 6 p.m. - 7 p.m.

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/decembervirtualopenhouse

Amendment to Instream Resources Protection Program rules for, WRIA 7, 8, 13, 14, 15

Public Event: Oct. 9, 2025, 6 p.m., in Online webinar
Ecology is holding a virtual meeting about the rulemaking for chapters 173-507, 173-508, 173-513, 173-514, and 173-515 WAC.

https://ecology.wa.gov/events/wr/rulemaking-173-507-508-513-514-515/oct-9-virtual

Amendment to Instream Resources Protection Program rules for, WRIA 7, 8, 13, 14, 15

Public Event: Oct. 8, 2025, 2 p.m., in Online webinar
Ecology is holding a virtual meeting about the rulemaking for chapters 173-507, 173-508, 173-513, 173-514, and 173-515 WAC

https://ecology.wa.gov/events/wr/rulemaking-173-507-508-513-514-515/oct-8-virtual

Pendleton Woolen Mills Draft Permit

Comment Period: Oct. 14, 2025, 12 a.m. - Nov. 12, 2025, 11:59 p.m.
We invite you to comment on draft Water Quality Permit No. ST0501380 (previously known as ST0006002, ST 6002)

https://ecology.wa.gov/events/wq/waste-discharge-permits-2e5ab73db877bfab36ddd36a6a436930/pendleton-woolen-mills

Development Schedules for Water Right Changes and Transfers (POL-1280)

Comment Period: Oct. 21, 2025, 12 a.m. - Dec. 5, 2025, 11:59 p.m.
You are invited to review the draft update of POL-1280, Development Schedules for Water Right Changes and Transfers Policy and Interpretive Statement and share your comments with us.

https://ecology.wa.gov/events/wr/wrp-policy/pol-1280-fall-2025

Microsoft EAT02-09 Data Center Campus Revised Permit Application

Comment Period: Oct. 23, 2025, 12 a.m. - Nov. 30, 2025, 11:59 p.m.
We invite you to comment on revised permit application ST0501334.

https://ecology.wa.gov/events/wq/waste-discharge-permits-2e5ab73db877bfab36ddd36a6a436930/microsoft-eat02-09-data-center-campus

November Virtual Open House

Public Event: Nov. 17, 2025, 6 p.m., in online webinar
Join our Virtual Open House on November 18 from 6 p.m. - 7 p.m.

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/novembervirtualopenhouse

Chapter 173-224 WAC – Water Quality Permit Fees

This is the rulemaking page for Chapter 173-224 WAC

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-224

Chapter 173-201A WAC (Outstanding Resource Waters)

This is the rulemaking page for Chapter 173-201A WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-201a-outstanding-resource-waters

Draft NPDES water quality permit

Comment Period: Jan. 30, 2025, 12 a.m. - March 13, 2025, 11:59 p.m.
We invite you to review and comment on the draft National Pollutant Discharge Elimination System Waste Discharge (NPDES) permit for Georgia-Pacific Camas Mill in Camas (Clark County).

https://ecology.wa.gov/events/swm/georgia-pacific-camas/npdes-water-quality-permit

September Virtual Open House

Public Event: Sept. 16, 2025, 6 p.m., in online webinar
Join our Virtual Open House on September 16 from 6 p.m. - 7 p.m.

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/septembervirtualopenhouse

Bunge, Warden

Comment Period: Oct. 28, 2025, 12 a.m. - Nov. 13, 2025, 11:59 p.m.
We propose to approve Bunge USA's air quality notice of construction (NOC) application. We will hold a public comment period if one is requested.

https://ecology.wa.gov/events/aq/notice-of-construction-applications/bunge-comment-ends-11-13-25