United States Nuclear Regulatory Commission - Protecting People and the Environment

U.S. Nuclear Regulatory Commission

Question 55: 10 CFR 20.2104 (e) (1) prorates the 5-rem

annual limit on the total effective dose equivalent at a

rate of 1.25 rems per quarter for each quarter for which

records were unavailable but includes no similar provisions

for the other annual limits (individual organs, eye, skin,

extremities). Is similar proration required for doses

covered by the other limits?

Answer: Yes. As indicated in the statement of

considerations (56 FR 23383, first column), the values for

the other limits should be reduced by one quarter for each

unreported quarter. (References: 10 CFR 20.1201 (f), 10

CFR 20.2104 (e) (1))

Page Last Reviewed/Updated Thursday, March 29, 2012