EPA Half-Approves Colorado's Hazy Air Cleanup Plan
Published Date: 7/16/2025
Proposed Rule
Summary
The EPA is giving Colorado a thumbs-up on some parts of its plan to clear up regional haze but a thumbs-down on others, especially where the state didn’t fully explain how it will shut down certain pollution sources. This affects Colorado’s air quality efforts and aims to keep our skies clearer in special protected areas. The EPA also wants to tidy up Colorado’s rules by putting all haze plans in one spot, helping everyone stay on track.
Analyzed Economic Effects
1 provisions identified: 0 benefits, 0 costs, 1 mixed.
EPA Partially Rejects Colorado Haze Plan
If you operate a pollution-emitting facility in Colorado, the EPA is proposing to partially disapprove Colorado's 2022 regional haze State Implementation Plan (SIP) for the second implementation period because it includes "insufficiently justified enforceable source closures" that the EPA says do not meet statutory requirements. The proposal also includes a partial approval of other parts of the 2022 SIP that address making reasonable progress to prevent and remedy anthropogenic visibility impairment in mandatory Class I Federal areas for the second implementation period.
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