Which law requires federal registration of pesticides shipped in interstate commerce?

The law that requires federal registration of pesticides shipped in interstate commerce is the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). This legislation was enacted to ensure that all pesticides sold in the United States are evaluated for their safety and efficacy before they can be used or distributed. Under FIFRA, manufacturers must submit data proving that their pesticide products do not harm human health or the environment when used according to label instructions. This law provides a framework for regulating the distribution, sale, and use of pesticides, ensuring that they meet federal safety standards.

Other options like FEPCA (Federal Environmental Pesticide Control Act), RCRA (Resource Conservation and Recovery Act), and TSCA (Toxic Substances Control Act) deal with various aspects of environmental regulation and hazardous substances but are not specifically focused on the registration and regulation of pesticides in the manner that FIFRA is.