Which organization sets forth regulations for radiation safety in the United States?

The Nuclear Regulatory Commission (NRC) is the primary federal agency responsible for regulating the use of nuclear materials and for ensuring public health and safety in relation to radiation exposure. Established in 1975, the NRC sets regulations that govern the use of radioactive materials and facilities, providing guidelines and oversight to ensure that radiation is managed safely and effectively, minimizing risks to both workers and the general public.

The NRC's regulations cover a wide range of activities and industries, including medical applications, nuclear power plants, and research institutions. By establishing safety standards and enforcing compliance, the NRC plays a crucial role in protecting individuals from the potential hazards associated with radiation.

While other organizations, such as the EPA, CDC, and OSHA, have important roles in environmental protection, public health, and workplace safety respectively, they do not specifically focus on the regulation of radiation safety in the same way that the NRC does. The EPA, for example, is more concerned with environmental standards, the CDC focuses on public health issues including infectious diseases, and OSHA regulates workplace safety but does not specialize in radiation exposure. Thus, the NRC is the correct answer when it comes to the regulatory body for radiation safety in the United States.