Clean Data Determination; 1997 8-Hour Ozone Standards; California; Sacramento Metro Area
The U.S. Environmental Protection Agency (EPA or "Agency") is proposing to issue a clean data determination (CDD) for the Sacramento Metro, California nonattainment area to reflect our finding that the area is attaining the 1997 8-hour ozone national ambient air quality standards (NAAQS or "standards"). This finding is based on quality-assured and certified ambient air quality monitoring data from 2023 through 2025. If we finalize this CDD, certain Clean Air Act (CAA) requirements that apply to the Sacramento Metro area will be suspended for so long as the area continues to attain the 1997 8-hour ozone NAAQS. We are taking comments on this proposal and plan to follow with a final action.
Related coverage
- Administrative Declaration of a Disaster for the State of Colorado
- Television Broadcasting Services Des Moines, Iowa
- Request for Extension of an Information Collection-Local Food Directories and Survey
- Regulations Regarding Payment of Tax by Commercially Acceptable Means
- Approval and Promulgation of Implementation Plans; Arizona; Revisions to the Cleaner Burning Gasoline, Winter Oxygenated Fuel, and Gasoline Set-Aside Programs
- Air Quality Plan; Arizona; Pinal County Air Quality Control District; West Pinal County PM10 Nonattainment Area; Fugitive Dust Rules