Approval and Promulgation of Implementation Plans; Arizona- Phoenix Nonattainment Area; PMINF10

EPA is finalizing the approval of a revision to the Arizona State Implementation Plan (SIP) proposed in the Federal Register on July 28, 1994. The revision was submitted to EPA by Arizona to fulfill the State's obligation to revise its SIP to meet the PM<INF>10 (particulate matter less than or equal to 10 microns in aerodynamic diameter) ``moderate'' area planning requirements of the Clean Air Act (CAA or Act). This approval action will incorporate this revision into the federally approved SIP. The intended effect of approving this revision is to regulate emissions of PM<INF>10 in the Phoenix Planning Area (PPA). The revised SIP controls PM<INF>10 emissions from sources including, but not limited to, paved roads, construction and demolition activities, unpaved parking areas and roads, nonmetallic mineral mining and processing facilities, open burning activities, uncovered haul trucks and farming operations. Thus, EPA is finalizing the approval of this revision 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.