Approval and Promulgation of State Implementation Plans and Redesignation of California's Ten Federal Carbon Monoxide Planning Areas to Attainment

EPA is taking direct final action on maintenance plans and redesignation requests submitted by the California Air Resources Board (CARB) to redesignate ten of California's federal carbon monoxide planning areas from nonattainment to attainment for the National Ambient Air Quality Standards (NAAQS) for carbon monoxide (CO). They are: Bakersfield Metropolitan Area, Fresno Urbanized Area, Lake Tahoe South Shore Area, Sacramento Area, San Francisco-Oakland-San Jose Area, Chico Urbanized Area, Lake Tahoe North Shore Area, Modesto Urbanized Area, San Diego Area, and Stockton Urbanized Area. Under the Clean Air Act as amended in 1990 (CAA), designations can be revised if sufficient data is available to warrant such revisions. In this action, EPA is approving California's maintenance plans and redesignation requests because they meet the requirements set forth in the CAA. In addition, EPA is approving a related State Implementation Plan (SIP) submission by CARB, an Air Quality Attainment Plan for CO for Fresno. EPA is publishing this rule without prior proposal because the Agency views this as a noncontroversial amendment and anticipates no adverse comments. However, in the proposed rules section of this Federal Register publication, EPA is publishing a separate document that will serve as the proposal to approve the SIP revision should relevant adverse comments be filed.