Approval and Promulgation of Implementation Plans; Indiana

On September 19, 1995, and November 8, 1995, the State of Indiana submitted a State Implementation Plan (SIP) revision request to the EPA establishing regulations for automobile refinishing operations in Clark, Floyd, Lake, and Porter Counties, as part of the State's 15 percent (%) Rate of Progress (ROP) plan control strategies for Volatile Organic Compounds (VOC) emissions. VOC is an air pollutant which combines with oxides of nitrogen in the atmosphere to form ground-level ozone, commonly known as smog. Ozone pollution is of particular concern because of its harmful effects upon lung tissue and breathing passages. ROP plans are intended to bring areas which have been exceeding the public health-based Federal ozone air quality standard closer to attaining the ozone standard. This rule establishes VOC content limits for suppliers and users of coating and surface preparation products applied in motor vehicle/mobile equipment refinishing operations, as well as requires subject refinishing facilities to meet certain work practice standards to further reduce VOC. Indiana expects that the control measures specified in this automobile refinishing SIP will reduce VOC emissions by 4,679 pounds per day (lbs/day) in Lake and Porter Counties and 1,172 lbs/day in Clark and Floyd Counties. This rule is being approved because it meets all the applicable Federal requirements.