Extension of the Attainment Date and Determination of Attainment by the Attainment Date of the Uinta Basin Marginal Nonattainment Area Under the 2015 Ozone National Ambient Air Quality Standards

Summary

The Environmental Protection Agency (EPA) is proposing a 1-year extension of the attainment date for the Uinta Basin Marginal nonattainment area in Utah, from August 3, 2022, to August 3, 2023, and determining that the area attained the 2015 Ozone National Ambient Air Quality Standards by the extended attainment date.