The report describes a study of certain applications of the Implementation Planning Program (IPP), undertaken as a part of Phase III of the Regional Air Pollution Analysis Project. The Implementation Planning Program is an air resource management planning tool which includes mathematical models representing the atmospheric diffusion of pollutants, the cost and effectiveness of pollution control measures, and the potential air quality impact of air pollution control strategies upon which control legislation may be based. The following objectives are examined here: Estimation of the demand for control measures generated by the need to meet the requirements of the Clean Air Act, as amended; Examination of the emission standards which were used in the Cost of Clean Air Report of the Clean Air Act, and to determine if the assumption that these emission standards will achieve air quality standards is valid; Observation of the operational data requirements of an IPP type analysis, to determine whether or not these requirements may be relaxed and the corresponding data collection problems reduced. (Author)