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Energy & environment · 02/04/2026

Finding of Failure To Attain the 2006 24-Hour PM2.5 Standards; California; San Joaquin Valley; Error Correction

The Environmental Protection Agency (EPA) is proposing to correct a 2020 final action and deny California's extension request for the 2006 24-hour PM2.5 national ambient air quality standards in the San Joaquin Valley, citing failure to attain the standards by December 31, 2019.

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

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