Utah; Northern Wasatch Front; 2015 8-Hour Ozone National Ambient Air Quality Standards; Reconsideration and Repeal of Finding of Failure To Attain and Reclassification to a Serious Nonattainment Area; Determination of Attainment by the Moderate Attainment Date But for International Emissions

What it does

The U.S. Environmental Protection Agency (EPA) is proposing to repeal the December 9, 2024, final rule in which the Agency determined that the Northern Wasatch Front (NWF) nonattainment area (NAA) in Utah failed to attain the Clean Air Act (CAA) 2015 ozone National Ambient Air Quality Standards (NAAQS) by the August 3, 2024, Moderate area attainment date, and reclassified the area by operation of law to Serious nonattainment (the "December 2024 Final Rule"). The EPA is also proposing to determine that the NWF ozone NAA would have attained the 2015 ozone NAAQS by the Moderate area attainment date but for emissions emanating from outside the United States (U.S.). If the EPA finalizes this proposed action, the NWF ozone NAA would no longer be subject to the CAA requirements pertaining to reclassification to Serious nonattainment upon failure to attain and would remain classified as Moderate for the 2015 ozone NAAQS.

The Environmental Protection Agency's summary, as published in the Federal Register.

What it would change

2 parts of Title 40 of the Code of Federal Regulations:

40 CFR 52, 40 CFR 81

What happens next and when

Written comments must be received on or before June 1, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket EPA-R08-OAR-2024-0552 on Regulations.gov
• Title 40 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register