The Waste Materials industry, classified under SIC Code 4953, involves the collection, transportation, and disposal of waste materials. This industry is responsible for managing various types of waste, including municipal solid waste, hazardous waste, and industrial waste. The industry plays a crucial role in maintaining public health and safety by ensuring that waste is disposed of in a safe and environmentally friendly manner. The Waste Materials industry is a highly regulated industry, with strict guidelines and regulations governing the handling and disposal of waste materials. Companies operating in this industry must comply with federal, state, and local regulations, including the Resource Conservation and Recovery Act (RCRA) and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The Waste Materials industry is a diverse industry, with a range of companies operating in different segments of the industry. Some companies specialize in the collection and transportation of waste materials, while others focus on the treatment and disposal of waste. The industry also includes companies that provide recycling services and waste-to-energy facilities.