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Alert

The NRC is shutdown due to the lapse in appropriations. Exempted activities to maintain critical health and safety activities and progress on critical activities, including activities outlined in Executive Order 14300, as described in the OMB Approved NRC Lapse Plan will continue.

Background on Radiation and Material

On this page:

Legislation and Reports

Uses of Radioactive Material

Medical, Industrial, and Academic Uses of Nuclear Material. Definitions, questions and answers, and more.

Byproduct Material page. Definition and regulation.

Backgrounder on Byproduct Material. More on the categories, uses, and their regulation.

Radiation Safety

Radiation Protection. Expanded definition of radiation, description of sources, health effects, frequently asked questions, and information for radiation workers.

Radiation Protection (Environmental Protection Agency). Understanding radiation, awareness, health, glossary, and more.

Fact Sheet on Biological Effects of Radiation

Health Physics Society. Definitions, Ask the experts (Radiation Q&A), and more…

To learn more about uses of material, see our Medical, Industrial, and Academic Uses of Nuclear Materials web page.

Radiological Emergencies

Page Last Reviewed/Updated Wednesday, December 02, 2020

Page Last Reviewed/Updated Wednesday, December 02, 2020