Approval and Promulgation of Air Quality Implementation Plans; State of Utah; Revisions to the Utah Division of Administrative Rules, R307-300 Series; Area Source Rules for Attainment of Fine Particulate Matter Standards

The Environmental Protection Agency (EPA) is finalizing approval and finalizing the conditional approval of portions of the fine particulate matter (PM2.5) State Implementation Plan (SIP) and other general rule revisions submitted by the State of Utah. The revisions affect the Utah Division of Administrative Rules (DAR), R307-300 Series; Requirements for Specific Locations. The revisions had submission dates of: February 2, 2012, May 9, 2013, June 8, 2013, February 18, 2014, April 17, 2014, May 20, 2014, July 10, 2014, August 6, 2014, and December 9, 2014. These area source rules control emissions of direct PM2.5 and PM2.5 precursors, sulfur dioxides (SO2), nitrogen oxides (NOX) and volatile organic compounds (VOC). Our approval will make these rules federally enforceable. Additionally, EPA is finalizing approval of the State's reasonably available control measure (RACM) determinations for the rule revisions that pertain to the PM2.5 SIP. This action is being taken under section 110 of the Clean Air Act (CAA or Act).