Toxic Substances Control Act of 1972 (S 1478). This bill requires pre-market testing of potentially dangerous chemicals and gives the Environmental Protection Agency the authority to restrict or ban their commercial use. The vote is on the Baker amendment to limit pre-market testing and restrictions to only those chemicals which EPA "has reason to believe may pose an unreasonable threat...under intended and normal circumstances of use..." Under this amendment, a chemical could be marketed without testing, simply because its hazards were not yet known. The Nixon Administration took no position. (Rejected 28-43. May 30, 1972. "No" is the correct vote.)