Designation of Areas for Air Quality Planning Purposes; California; San Joaquin Valley, South Coast Air Basin, Coachella Valley, and Sacramento Metro 8-Hour Ozone Nonattainment Areas; Reclassification

Résumé

Under the Clean Air Act (CAA or "Act"), EPA is granting requests by the State of California to reclassify the following four areas designated as nonattainment for the 1997 8-hour ozone national ambient air quality standard (NAAQS): The San Joaquin Valley area from "serious" to "extreme," the South Coast Air Basin area from "severe-17" to "extreme," and the Coachella Valley and Sacramento Metro areas from "serious" to "severe-15." In connection with the reclassifications, EPA is setting a deadline of no later than 12 months from the effective date of reclassification for submittal of revisions to the Sacramento Metro area portion of the California State Implementation Plan (SIP) to meet the additional new source review (NSR) requirements for "severe-15" 8-hour ozone nonattainment areas. EPA is deferring the setting of a submittal deadline for certain fee rules under section 185 of the CAA. A number of Indian tribes have Indian country located within the boundaries of the affected areas. The State of California is not approved to administer any CAA programs in Indian country, and the relevant Indian tribes have not applied for eligibility to administer programs under the CAA for thei