Infrastructure, rule, & program plans

We submit plans as well as state and local rules to EPA that demonstrate Washington has the tools in place to meet national air quality standards. Once approved by EPA, these plans for infrastructure, rules, and programs become part of Washington's State Implementation Plan (SIP) for air quality. Plans and rules in Washington's State Implementation Plan are enforceable by EPA and the public.

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Open for public comment

We propose revisions to Washington's air quality State Implementation Plan. These revisions show Washington's ability to attain, maintain, enforce, and implement federal air quality standards through infrastructure requirements and updated rules.

SIP document How to comment or request a public hearing

Draft SIP Revision:  Including Revised Puget Sound Clean Air Agency Regulation I

Puget Sound Clean Air Agency Regulation I
(rule language)

Public comment period:  Oct. 21, 2019 – Dec. 6, 2019

Comment or request a public hearing online
• Mail comments to:
  Colleen Stinson, Air Quality Program
  Washington State Department of Ecology
  P.O. Box 47600; Olympia, WA 98504-7600

Public hearing CANCELLED:
(We did not get a request by Nov. 21, 2019.)
  December 4, 2019, 11 a.m.
  Puget Sound Clean Air Agency
  1904 Third Avenue Suite 105; Seattle, WA  98101

For more information, contact Colleen Stinson at 360-407-6837.

Español (Spanish) | 中文 (Chinese) | Tiếng Việt (Vietnamese) | 한국어 (Korean)

Draft SIP Revision:  Including Northwest Clean Air Agency Regulation


Public comment period:  Nov. 12, 2019 – Dec. 29, 2019

Comment or request a public hearing online
• Mail comments to:
   Linda Kildahl, Air Quality Program
   Washington State Department of Ecology
   P.O. Box 47600; Olympia, WA 98504-7600

Public hearing CANCELLED:
(We did not get a request by Dec. 13, 2019.)
  December 19, 2019, 11:00 a.m.
  Northwest Clean Air Agency
  1600 South Second Street
  Mount Vernon, WA 98273

For more information, contact Jacob Berkey at 360-407-7086.

Español (Spanish) | 中文 (Chinese) | Tiếng Việt (Vietnamese) | 한국어 (Korean) | Русский (Russian)

To request ADA accommodation for the public hearing, email Ecology's ADA coordinator or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY).

Infrastructure state implementation plans

When EPA revises or issues a new National Ambient Air Quality Standard, the federal Clean Air Act requires each state to adopt and submit to EPA a plan, called an Infrastructure State Implementation Plan. An infrastructure plan shows how the state will implement, meet, and enforce federal standards for specific air pollutants, such as nitrogen dioxide, particles (also called particulate matter), lead, and ozone. The plan describes the infrastructure Washington has in place to protect air quality, such as:

  • Legal authority to implement federal standards
  • Rules adopted in the plan to meet federal standards
  • Air monitors to measure air pollution and determine compliance with the federal standards
  • Funding and resources
  • Permitting and other programs
  • Studies about how air pollution travels to neighboring states

Rule state implementation plans

Washington’s plan includes current state and local rules to reduce air pollution and meet federal air quality standards. When state and local agencies revise or add new rules in the plan, we submit those updates to EPA.

Program state implementation plans

A program state implementation plan describes specific programs to protect air quality and meet federal air quality standards.