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The United States Environmental Protection Agency (USEPA) took final action to reclassify the San Joaquin Valley area from moderate nonattainment to serious nonattainment for the 2006 PM2.5 national ambient air quality standards (NAAQS).  As a result of the reclassification, San Joaquin Valley Air Pollution Control District (SJVAPCD) and California Air Resources Board (CARB) will need to establish revised PM2.5 and PM2.5 precursor emission thresholds for major stationary sources as a part of the nonattainment new source review (NNSR) program in place.  The revised major stationary source thresholds must be submitted to the USEPA as part of the State Implementation Plan (SIP) within 12 months after the effective date of the reclassification.  The reclassification was effective as of February 19, 2016.