The paper discusses key emission stream characteristics and hazardous air pollutant (HAP) characteristics that affect the applicability of catalytic oxidation as an air pollution control technique in which volatile organic compounds (VOCs) and vapor-phase air toxics in an air emission stream are oxidized with the help of a catalyst. Design of catalytic systems for control of point source emissions is based on stream-specific characteristics and desired control efficiency. The application of catalytic oxidation to four types of air emission sources is discussed: groundwater stripping operations, graphics arts (heatset printing) facilities, flexographic printing plants, and latex monomer production. The characteristics of each emission are discussed along with the catalytic technology used to control it. In addition, several catalytic systems are identified for control of air emissions, along with information about their technology and their position in the market place. Finally, some rough economics are presented which compare catalytic oxidation, carbon adsorption, and thermal incineration systems.