Approval and Promulgation of Implementation Plans; Arizona State Implementation Plan Revision, Maricopa County

EPA is finalizing the approval of revisions to the Arizona State Implementation Plan (SIP) proposed in the Federal Register on December 17, 1997. The revisions concern rules from the Maricopa County Environmental Services Department, Technical Services Division (MCESD). This approval action will incorporate these rules into the federally approved SIP. The intended effect of approving these rules is to regulate emissions of volatile organic compounds (VOCs) in accordance with the requirements of the Clean Air Act, as amended in 1990 (CAA or the Act). The revised rules control VOC emissions from solvent cleaning, petroleum solvent dry cleaning, rubber sports ball manufacturing, graphic arts, semiconductor manufacturing, vegetable oil extraction processes, wood furniture and fixture coating, wood millwork coating, and loading of organic liquids. Thus, EPA is finalizing the approval of these revisions into the Arizona SIP under provisions of the CAA regarding EPA action on SIP submittals, SIPs for national primary and secondary ambient air quality standards and plan requirements for nonattainment areas.