The law of hazardous wastes and toxic substances is a specialized field involving the overlap of federal and state statutes, science, economics, and public policy. This text covers the regulation of the production, sale, use, and disposal of toxic substances, ranging from pesticides to chemicals to genetically-engineered animals. It also addresses the “cradle-to-grave” regulation of hazardous wastes under RCRA and the cleanup of these wastes under CERCLA, the Superfund law.