WASHINGTON, Sept. 14 -- Environmental Protection Agency has issued a proposed rule called: Clean Data Determination; 1997 8-Hour Ozone Standards; California; Sacramento Metro Area.
The proposed rule was published in the Federal Register on Sept. 14 by Michael Martucci, Acting Regional Administrator, Region IX.
Summary: 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 f...