The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

Health Physics Questions and Answers - Question 9

Question 9: A licensee monitors a worker for both external and internal exposure under ยง20.1502, but the internal exposure for the year is less than 10% of the dose limit. Does the licensee add it to the external exposure?

Answer: If both internal and external doses were required to be monitored (see 10 CFR 20.1502 for these requirements), then they must be summed. If only the internal or external dose required monitoring, then they don't have to be summed.

(References: 10 CFR 20.1202, 10 CFR 20.1502)

Page Last Reviewed/Updated Wednesday, December 13, 2017