The major objective of the contract effort was to determine the direct economic impact of implementing RACT standards in Michigan. The study is to be used primarily to assist EPA and Michigan decisions on achieving the emission limitations of the RACT standards. The economic impact was assessed for the following 10 RACT industrial categories: surface coatings (cans, coils, paper, fabrics, insulation of magnet wire, large appliances); solvent metal cleaning; bulk gasoline plants; storage of petroleum liquids in fixed roof tanks; and gasoline dispensing stations--Stage I. The scope of this project was to determine the costs and direct impact of control to achieve RACT guideline limitations for these 10 industry categories in Michigan. Direct economic costs and benefits from the implementation of RACT limitations were identified and quantified; while secondary impacts (social, energy, employment, etc.) are addressed, they were not a major emphasis in the study.