21 Aug 2025

🌿EPA Updates Washington State Implementation Plan for Air Quality

Air Plan Approval; WA; Update to Materials Incorporated by Reference

Summary

The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the Washington State Implementation Plan (SIP). The regulations affected by this update have been previously submitted by Washington and approved by the EPA. This update affects the materials that are available for public inspection at the National Archives and Records Administration (NARA) and the EPA Regional Office.

Agencies

  • Environmental Protection Agency

Business Impact ?

$$ - Med

The regulatory update involves compliance for businesses operating in Washington state regarding air quality standards. It requires business owners to adhere to new or revised regulations specified in the State Implementation Plan (SIP) related to air pollution control. This may necessitate adjustments in operations to meet regulatory requirements, impacting operational costs and compliance efforts.

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