EPA Eyes Approval of Alaska's Regional Haze Reduction Plan
Published Date: 10/30/2025
Proposed Rule
Summary
The EPA is proposing to approve Alaska’s plan to reduce regional haze and improve air quality for the next five years. This plan affects communities near protected natural areas by aiming to keep the skies clearer and healthier. Comments on the plan are open until December 1, 2025, and the plan supports cleaner air without extra costs for residents.
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
EPA proposes cleaner skies in Alaska
The EPA is proposing to approve Alaska’s regional haze plan for the second implementation period, which aims to keep skies clearer and healthier around Class I areas such as Denali, Tuxedni, Simeonof, and the Bering Sea Wilderness Areas. The proposal says the plan supports cleaner air without extra costs for residents; written comments are due by December 1, 2025.
No new SO2 controls required
Alaska relied on updated sulfur dioxide (SO2) Best Available Control Technology analyses submitted December 4, 2024, and in an October 6, 2025 letter the State said it found no additional SO2 controls to be necessary for reasonable progress in the second implementation period. That finding means sources in Alaska were not identified for new SO2 control requirements under this plan as proposed.
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