2025-11250Proposed Rule

EPA Approves Utah's Plan to Curb Interstate Ozone Pollution

Published Date: 6/18/2025

Proposed Rule

Summary

The EPA is giving a thumbs-up to Utah’s plan that stops its air pollution from messing with other states’ clean air, focusing on keeping ozone levels in check. This means Utah’s rules are good enough to help keep the air fresh not just at home but across state lines. Businesses and residents can expect cleaner air without new costly changes right now.

Analyzed Economic Effects

2 provisions identified: 2 benefits, 0 costs, 0 mixed.

EPA proposes OK for Utah ozone plan

The EPA is proposing to approve part of Utah’s State Implementation Plan that addresses interstate transport for the 2008 8-hour ozone national standard. This action specifically approves the requirement that Utah’s rules stop emissions from interfering with maintenance of the ozone standard in other states (called “prong 2”).

No new costly changes expected now

The EPA’s proposed approval indicates Utah’s current SIP provisions for the 2008 8-hour ozone standard are adequate for prong 2, so businesses and residents in Utah should not face new costly rule changes right now. It focuses on keeping ozone levels in check across state lines without imposing additional requirements at this time.

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Key Dates

Published Date
6/18/2025

Department and Agencies

Department
Independent Agency
Agency
Environmental Protection Agency
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