2025-18599Rule

EPA Approves Washington's Regional Haze Air Quality Plan

Published Date: 9/25/2025

Rule

Summary

The EPA is giving a thumbs-up to Washington’s updated plan to clear up the skies and reduce haze for the next few years. This plan helps protect parks and communities by cutting pollution that makes the air hazy. Washington’s businesses and residents can expect cleaner air without big costs or delays, starting now through the second haze control period.

Analyzed Economic Effects

1 provisions identified: 1 benefits, 0 costs, 0 mixed.

Washington Regional Haze Plan Approved

The EPA approved Washington’s regional haze State Implementation Plan (SIP) revision that Washington submitted on January 28, 2022, to meet Clean Air Act and Regional Haze Rule requirements for the second implementation period. This approval is intended to cut pollution that causes haze and help protect parks and communities in Washington, and the rule is expected to take effect starting now through the second haze control period with no big costs or delays for businesses and residents.

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Key Dates

Published Date
Rule Effective
9/25/2025
10/27/2025

Department and Agencies

Department
Independent Agency
Agency
Environmental Protection Agency
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