Federal Insecticide, Fungicide and Rodenticide Act (FIFRA)
The Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) was originally passed in 1947. It required all the Department of Agriculture to register all pesticides before they were available on the market. The Dept. of Ag. was required to refuse registration to all pesticides that were unsafe or ineffective and remove them from the market.
In 1970, the administration of FIFRA was passed to the newly created EPA. FIFRA required that no pesticide may be sold unless the manufacturer registers the product with the EPA and the EPA approves its use. The EPA can restrict or prohibit use of any pesticide.
See: Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) links.