Texas v. Environmental Protection Agency, No. 18-60606 (5th Cir. 2020)Annotate this Case
The Fifth Circuit denied petitions for review by the State of Texas and Sierra Club, challenging the EPA's action designating Bexar County, Texas as in nonattainment and three neighboring counties as in attainment with the 2015 Ozone National Ambient Air Quality Standards (NAAQS).
After determining that venue is proper in the Fifth Circuit, the court held that the relevant statutory language in the Clean Air Act grants EPA discretionary authority to make the changes it "deems necessary." The court also held that EPA's interpretation and implementation of the statute is reasonable. In this case, because Bexar County was not compliant with the 2015 NAAQS when EPA promulgated its designation, the court concluded that the Clean Air Act and the Administrative Procedure Act allowed the change. In regard to the three counties, the court concluded that EPA has not arbitrarily reversed its interpretation of "contribution" and EPA did not fail to articulate a rational connection between the facts in the record and its decision not to designate the disputed counties as nonattainment. In this case, EPA used a permissible, multi-factor analysis to determine that the contributions of Atascosa, Comal, and Guadalupe Counties to Bexar County's ambient ozone levels were insufficient to merit a nonattainment designation.