Final answer:
The FDA is responsible for enforcing the FDCA and its amendments. This agency regulates food, drugs, cosmetics, and more to protect public health and ensure safety and efficacy of food and medical products.
Step-by-step explanation:
The federal agency responsible for enforcing the Federal Food, Drug, and Cosmetic Act (FDCA) and its amendments, including the Food and Drug Administration Amendments Act (FDAAA) of 2007, is the Food and Drug Administration (FDA). The FDA, which is a part of the United States Department of Health and Human Services, plays a crucial role in safeguarding public health by regulating diverse items such as food, drugs, cosmetics, medical devices, and radiation-emitting products. The agency is empowered with a range of functions from the oversight of the commercialization process, including product testing, manufacturing practices, labeling, advertising, marketing, and post-marketing surveillance, to the enforcement of associated safety standards.
In collaboration with other federal agencies and state and local governments, the FDA ensures the security of the nation's food supply and medical products. This formidable responsibility includes fostering the development of products that can respond to public health threats, both deliberate and naturally occurring.