40 CFR § 52.2353
Control strategy: Carbon monoxide
June 9, 2020
Determination. EPA has determined that the Provo carbon monoxide “moderate” nonattainment area attained the carbon monoxide national ambient air quality standard by December 31, 1995. This determination is based on air quality monitoring data from 1994 and 1995.
[67 FR 59168, Sept. 20, 2002]