Occupational radiation exposure limits
NRC: 10 CFR Part 20.1201
The licensee shall control the occupational dose to individual adults, except for planned special exposures under § 20.1206, to the following dose limits.
Total effective dose equivalent: 5 rems (0.05 Sv)
Deep-dose equivalent, organ or tissue: 50 rems (0.5 Sv).
Lens dose equivalent: 15 rems (0.15 Sv)
Shallow-dose equivalent, Skin of the Whole Body 50 rem (0.5 Sv)
Skin of any extremity 50 rem (0.5 Sv)
Doses received in excess of the annual limits, including doses received during accidents, emergencies, and planned special exposures, must be subtracted from the limits for planned special exposures that the individual may receive during the current year