Artists, art teachers, and students need to understand the problems associated with disposing of waste materials, some of which may be hazardous. The waste products of art projects, even if non-hazardous, also use up space in overloaded landfills. The Environmental Protection Agency (EPA) sets forth guidelines for disposing of hazardous wastes. Hazardous waste disposal comes under the Resource Conservation and Recovery Act (RCRA), while industrial wastewater discharges fall under the Clean Water Act (CWA). The EPA divides hazardous waste producers into large quantity, small quantity, and conditionally exempt small quantity generators of hazardous waste, each category of which must follow a particular set of regulations. Most artists and art educators produce too little liquid waste to require compliance with the CWA. However, certain art related industries, such as porcelain enameling and photographic processing, must comply with certain EPA standards. There are many types of solid waste. Among these are toxic waste, acutely hazardous waste, flammable waste, corrosive waste, reactive waste, and leachable toxic waste. Waste management methods, in order of preference, include: (1) elimination or reduction at the source; (2) separation or concentration; (3) exchange; (4) energy or material recovery; (5) incineration or treatment; and (6) secure land disposal. (SG)