A study is presented consisting of a compilation of information to be used for evaluation of present programs and development of new approaches to air pollution control. The study begins with the description and analysis of federal legislation with particular reference to the Clean Air Act. Federal experience with voluntary compliance is reviewed. The experience with emission standards is reviewed and analyzed. A review is presented of various land use controls to improve the dispersion of pollution from stationary sources and to reduce exposure to pollutants. The role that private legal action may play in the control of pollution is reviewed. Information is presented on the concept of cost sharing and such measures as accelerated depreciation, investment tax-credits and tax exemptions. The use of economic incentives making it profitable for a firm to introduce measures for pollution control and, the possibilities of requiring polluters to pay a charge for which they are responsible are reviewed. The system for the control of air pollution in use in South Wales is described and analyzed. Finally, an assessment of the above approaches based upon the evaluation criteria which were developed in the course of the project is discussed.