Alert

Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

Health Physics Questions and Answers - Question 207

Question 207: The dose limits for an individual member of the public as specified in 10 CFR 20.1301 are specified in terms of rem. Since rem is an absorbed dose, must an individual be present for the dose limit to apply?

Answer: No. If using 10 CFR 20.1302 (b) (1) to show compliance with dose limits, occupancy times (time an individual is present) may be taken into account. If using the method in 10 CFR 20.1302 (b) (2) (ii) to demonstrate compliance, dose is calculated as if an individual were continuously present, regardless of whether an individual is continuously present. See related Questions 68, Set 2, and 102 Set 3.

(Reference: 10 CFR 20.1302, 10 CFR 20.1301)

Page Last Reviewed/Updated Wednesday, November 08, 2017