Approval and Promulgation of Implementation Plans for California-San Joaquin Valley PM-10 Nonattainment Area; Serious Area Plan for Attainment of the 24-Hour and Annual PM-10 Standards

EPA is finalizing approval of the "2003 PM10 Plan, San Joaquin Valley Plan to Attain Federal Standards for Particulate Matter 10 Microns and Smaller," submitted on August 19, 2003, and Amendments to that plan, submitted on December 30, 2003, as meeting the Clean Air Act (CAA or the Act) requirements applicable to the San Joaquin Valley, California nonattainment area for particulate matter of ten microns or less (PM-10)(SJV). The SJV violates the national ambient air quality standards (NAAQS) for PM-10 and is classified as a serious PM-10 nonattainment area. As a serious PM-10 nonattainment area, the State must submit to EPA a plan that provides for, among other things, the implementation of best available control measures (BACM). In addition, because the serious attainment deadline, December 31, 2001, has passed, the plan must provide for expeditious attainment of the PM-10 NAAQS and for an annual reduction in PM-10 or PM-10 precursor emissions of not less than five percent until attainment.