Approval and Promulgation of Air Quality Implementation Plans; Ohio; Control of Emissions of Organic Materials That Are Not Regulated by Volatile Organic Compound Reasonably Available Control Technology Rules

EPA is approving, as part of Ohio's State Implementation Plan (SIP) under the Clean Air Act (CAA), a revised rule 3745-21-07, "Control of emissions of organic materials from stationary sources (i.e., emissions that are not regulated by rule 3745-21-09, 3745-21-12, 3745-21-13, 3745-21-14, 3745-21-15, 3745-21-16, or 3745-21-18 of the Administrative Code)." This rule has been revised because the prior version of 3745-21-07, in Ohio's SIP, has inadequate compliance test methods and definitions. On February 8, 2008, the previously existing rule 3745-21-07, which was part of Ohio's SIP, was rescinded by Ohio EPA. The most significant problem with the prior version is the definition of "photochemically reactive material," which is different than the definition of "volatile organic compounds" (VOC), upon which EPA's reasonably available control technology (RACT) regulations are based. The revised rule is approvable because it satisfies the applicable requirements for VOC sources under the CAA. EPA proposed this rule for approval on April 13, 2011, and received no comments.