[Code of Federal Regulations]
[Title 10, Volume 1]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR20.1201]

[Page 317-318]
 
                            TITLE 10--ENERGY
 
                CHAPTER I--NUCLEAR REGULATORY COMMISSION
 
PART 20--STANDARDS FOR PROTECTION AGAINST RADIATION--Table of Contents
 
                   Subpart C--Occupational Dose Limits
 
Sec. 20.1201  Occupational dose limits for adults.

    Source: 56 FR 23396, May 21, 1991, unless otherwise noted.


    (a) The licensee shall control the occupational dose to individual 
adults, except for planned special exposures under Sec. 20.1206, to the 
following dose limits.
    (1) An annual limit, which is the more limiting of--
    (i) The total effective dose equivalent being equal to 5 rems (0.05 
Sv); or
    (ii) The sum of the deep-dose equivalent and the committed dose 
equivalent to any individual organ or tissue other than the lens of the 
eye being equal to 50 rems (0.5 Sv).
    (2) The annual limits to the lens of the eye, to the skin, and to 
the extremities, which are:
    (i) A lens dose equivalent of 15 rems (0.15 Sv), and
    (ii) A shallow-dose equivalent of 50 rems (0.50 Sv) to the skin or 
to any extremity.
    (b) 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 (see 
Sec. 20.1206(e)(1)) and during the individual's lifetime (see 
Sec. 20.1206(e)(2)).
    (c) The assigned deep-dose equivalent and shallow-dose equivalent 
must be for the part of the body receiving the highest exposure. The 
deep-dose equivalent, lens dose equivalent, and shallow-dose equivalent 
may be assessed from surveys or other radiation measurements for the 
purpose of demonstrating compliance with the occupational dose limits, 
if the individual monitoring device was not in the region of highest 
potential exposure, or the results of individual monitoring are 
unavailable.
    (d) Derived air concentration (DAC) and annual limit on intake (ALI) 
values are presented in table 1 of appendix B to part 20 and may be used 
to determine the individual's dose (see Sec. 20.2106)

[[Page 318]]

and to demonstrate compliance with the occupational dose limits.
    (e) In addition to the annual dose limits, the licensee shall limit 
the soluble uranium intake by an individual to 10 milligrams in a week 
in consideration of chemical toxicity (see footnote 3 of appendix B to 
part 20).
    (f) The licensee shall reduce the dose that an individual may be 
allowed to receive in the current year by the amount of occupational 
dose received while employed by any other person (see Sec. 20.2104(e)).

[56 FR 23396, May 21, 1991, as amended at 60 FR 20185, Apr. 25, 1995; 63 
FR 39482, July 23, 1998]