Regulations & Permits

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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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Presentation (WAC 173-441) 07/22/21

This is a presentation for the 7/22/21 stakeholder meeting for Chapter 173-441 WAC, Reporting of Emissions of Greenhouse Gases.

https://ecology.wa.gov/presentation-wac-173-441-07-22-21

Presentation (WAC 173-423) 04/19/22

This is the presentation for the April 19, 2022 stakeholder meeting about Chapter 173-423 WAC, Clean Vehicles Program and Chapter 173-400 WAC, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/presentation-wac-173-423-04-19-22

Presentation (WAC 173-423) 02/28/22

This is the presentation for the February 28, 2022 stakeholder meeting about Chapter 173-423 WAC, Clean Vehicles Program and Chapter 173-400 WAC, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/presentation-wac-173-423-02-28-22

Presentation (WAC 173-424) 08-23-22

This is a presentation for the 8/23/22 public hearing for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/presentation-wac-173-424-08-23-22

Presentation (WAC 173-424) 04/13/22

This is a presentation for the 4/13/22 stakeholder meeting for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/presentation-wac-173-424-04-13-22

Presentation (WAC 173-424) 03/15/22

This is a presentation for the 3/15/22 stakeholder meeting for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/presentation-wac-173-424-03-15-22

Presentation (WAC 173-424) 01/27/22

This is a presentation for the 1/27/22 stakeholder meeting for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/presentation-wac-173-424-01-27-22

Presentation (WAC 173-424) 11/16/21

This is a presentation for the 11/16/21 stakeholder meeting for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/presentation-wac-173-4246-11-16-21

Presentation (WAC 173-424) 10/06/21

This is a presentation for the 10/6/21 stakeholder meeting for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/presentation-wac-173-424-10-06-21

Presentation (WAC 173-408) 6-21-23

This is a presentation for the June 21, 2023 stakeholder meeting for Chapter 173-408 WAC, Landfill Methane Emissions.

https://ecology.wa.gov/presentation-(wac-173-408)-6-21-23

Presentation (WAC 173-441) 10-12-23 & 10-16-23

This is the presentation for the October 12 and 16, 2023 meetings to provide feedback on draft rule language for the Electricity Markets rulemaking.

https://ecology.wa.gov/presentation-wac-173-441-10-12-23-10-16-23

Presentation (WAC 173-424) 2-22-24

These are the presentation slides for the February 22, 2024 meeting for the Clean Fuel Standard rulemaking.

https://ecology.wa.gov/presentation-wac-173-424-2-22-24

Presentation (WAC 173-424) 2-28-24

These are the presentation slides for the February 28, 2024 meeting for the Clean Fuel Standard rulemaking.

https://ecology.wa.gov/presentation-wac-173-424-2-28-24

Clean Fuel Standard Rulemaking - May Presentation

.pdf slides for May 2nd and 8th Clean Fuel Standard Rulemaking webinars

https://ecology.wa.gov/presentation-wac-173-424-5-24

Listening Session: Liquid Fuels and Mass Balance Accounting

.pdf presentation for June 12, 2024 listening session on liquid fuels and mass balance accounting

https://ecology.wa.gov/presentation-wac-173-424-6-12-24

Presentation (WAC 173-424) 9-26 2024

Slideshow presentation from the Sept. 26, 2024, CFS Rulemaking Update webinar

https://ecology.wa.gov/presentation-wac-173-424-9-26-2024

CFS Workshop on Draft Rule Language

Slideshow presentation

https://ecology.wa.gov/presentation-wac-173-424-12-5-and-12-11-2024

Combined Community Forum: CVP & HFC Rulemaking

Presentation deck for the Jan 29 combined community forum

https://ecology.wa.gov/presentation-wac-173-434-443-1-29-25

Presentation (WAC 173-423) 1-30-25

This is a presentation for the January 30, 2025 industry focused meeting for Chapter 173-423 WAC, Clean Vehicles Program rulemaking.

https://ecology.wa.gov/presentation-wac-173-423-1-30-25

Presentation (WAC 173-423) 2-3-25

This is a presentation for the February 3, 2025 public information session for Chapter 173-423 WAC, Clean Vehicles Program rulemaking.

https://ecology.wa.gov/presentation-wac-173-423-2-3-25