The document discusses the Federal Food, Drug, and Cosmetic Act (FFDCA) and the Kefauver-Harris Amendments of 1962. The FFDCA was passed in 1938 in response to tragedies from unsafe drugs and gave more authority to the FDA. The Kefauver-Harris Amendments of 1962 required drug manufacturers to prove a drug's efficacy and safety before approval in response to the thalidomide crisis. The amendments strengthened pre-market drug approval processes and mandated new drug efficacy studies.