Final answer:
Animals used for research and teaching purposes are registered by the United States Department of Agriculture (USDA), not the FDA, EPA, or NIH.
Step-by-step explanation:
Animals used in research facilities and teaching institutions are registered with the United States Department of Agriculture (USDA). This is mandated by the Animal Welfare Act (AWA), which requires research facilities to register their use of certain animals with the USDA. It is crucial to note that the FDA, while responsible for protecting public health, does not register research animals. The FDA does work closely with various agencies, including the USDA, for regulatory inspections and enforcement actions. Specifically, the Center for Veterinary Medicine (CVM) within the FDA oversees certain animal-related products, but it does not handle the registration of animals used in research, which falls under the purview of the USDA.
Furthermore, institutions using animals and receiving federal funding must have an Institutional Animal Care and Use Committee (IACUC) following the regulations of the NIH. However, the NIH itself does not register these animals; rather, it sets guidelines for their humane care and use, which are overseen domestically by the IACUC at each institution.