Regulation & law · 20/12/2023

EPA Proposes Approval of Clean Air Plans for San Joaquin Valley, California

The Environmental Protection Agency (EPA) is proposing to approve two state implementation plan submissions that address contingency measures for the 1997 annual, 2006 24-hour, and 2012 annual fine particulate matter (PM 2.5) national ambient air quality standards (NAAQS) in the San Joaquin Valley PM 2.5 nonattainment area.