The Toxic Substances Control Act (TSCA) is a U.S. law enacted in 1976 that regulates the introduction of new or already existing chemicals. Its primary goal is to ensure that chemicals used in commerce do not pose an unreasonable risk to human health or the environment. The law gives the Environmental Protection Agency (EPA) the authority to require reporting, record-keeping, and testing of chemical substances. Under TSCA, the EPA can evaluate existing chemicals and take action to restrict or ban those that are found to be hazardous. The act also promotes the development of safer chemical alternatives and encourages manufacturers to provide information about the safety of their products.