Toxic Substances Control Act (TSCA), Public Law 94-469 (15 U.S.C. 2601-2671; Stat. 2003), as amended by P.L. 97-129 (95 Stat. 1686), P.L. 98-80 (97 Stat. 485), P.L. 98-620 (98 Stat. 3358), P.L. 100-368 (102 Stat. 829-833), and P.L. 100-481 (102 Stat. 1156) authorized the Environmental Protection Agency to obtain data from industry on health and environmental effects of chemical substances and mixtures. If unreasonable risk or injury may occur, EPA may regulate, limit or prohibit manufacture, processing, chemical distribution, use and disposal of such chemicals and mixtures.
Public Law 99-519 (100 Stat. 2970-2989) added requirements for routine and emergency evaluations and removals of asbestos hazards in schools and public buildings. Public Law 100-551 (102 Stat. 2755) established a program for abatement of indoor radon gas hazards.