stringent requirements that are broader in scope than the federal regulations. Furthermore, RCRA allows states to develop regulatory programs that are at least as stringent as RCRA and, after review by EPA, the states may take over responsibility for the implementation of the requirements under RCRA. Most states take advantage of this authority, implementing their own hazardous waste programs that are at least as stringent, and in some cases are more stringent than the federal program. The U.S. government provides several tools for mapping hazardous wastes to particular locations. These tools also allow the user to view additional information. TOXMAP was a Geographic Information System (GIS) service from the Division of Specialized Information Services of the United States National Library of Medicine (NLM) that used maps of the United States to help users visually explore data from the United States Environmental Protection Agency's (EPA) Toxics Release Inventory and Superfund Basic Research Program. This resource was funded by the US Federal Government. TOXMAP's chemical and environmental health information was taken from NLM's Toxicology Data Network (TOXNET), PubMed, and other authoritative sources. The US Environmental Protection Agency (EPA) "Where You Live" allows users to select a region from a map to find information about Superfund sites in that region. See also Toxic waste Bamako Convention Brownfield Regulation and Development Environmental hazard Environmental remediation Environmental racism Gade v. National Solid Wastes Management Association List of solid waste treatment technologies List of Superfund sites in the United States List of waste management companies List of waste management topics List of waste types Mixed waste (radioactive/hazardous) National Priorities List (in the US) Pollution Recycling Retail hazardous waste Toxicity characteristic leaching procedure Triad (environmental science) Vapor intrusion References External links Agency for Toxic Substances and Disease Registry The EPA's hazardous waste page The U.S. EPA's Hazardous Waste Cleanup Information System Waste Management: A Half Century of Progress, a report by the EPA Alumni Association Environment and health Occupational safety and health