What is the role of the Environmental Protection Agency (EPA) regarding radiation safety?

The Environmental Protection Agency (EPA) plays a critical role in enforcing regulations that protect public health and the environment from the hazards of radiation. This includes implementing and overseeing federal laws designed to limit exposure to ionizing radiation from various sources, such as nuclear facilities, radioactive waste disposal, and other environmental sources.

The EPA develops and enforces standards for radiation safety, ensuring that levels of radiation remain within safe limits to prevent harmful effects on human health and the ecosystem. They monitor radiation levels, assess risks, and provide guidelines and regulations that facilities must adhere to in order to minimize exposure to radiation.

While other options present important aspects related to radiation safety, they do not encompass the primary function of the EPA. For instance, facilitating medical training or conducting scientific research are valuable pursuits but fall outside the core enforcement and regulatory role of the EPA. Similarly, providing funding for programs can be important but is not the main function that characterizes the EPA's responsibility regarding radiation safety. Thus, the correct answer fittingly highlights the EPA's essential function in regulating and safeguarding against radiation hazards.