[Code of Federal Regulations]
[Title 10, Volume 1]
[Revised as of January 1, 2005]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR20.1502]

[Page 335-336]
 
                            TITLE 10--ENERGY
 
                CHAPTER I--NUCLEAR REGULATORY COMMISSION
 
PART 20_STANDARDS FOR PROTECTION AGAINST RADIATION--Table of Contents
 
                    Subpart F_Surveys and Monitoring
 
Sec. 20.1502  Conditions requiring individual monitoring of external 
and internal occupational dose.

    Each licensee shall monitor exposures to radiation and radioactive 
material at levels sufficient to demonstrate compliance with the 
occupational dose limits of this part. As a minimum--
    (a) Each licensee shall monitor occupational exposure to radiation 
from licensed and unlicensed radiation sources under the control of the 
licensee and shall supply and require the use of individual monitoring 
devices by--
    (1) Adults likely to receive, in 1 year from sources external to the 
body, a dose in excess of 10 percent of the limits in Sec. 20.1201(a),
    (2) Minors likely to receive, in 1 year, from radiation sources 
external to the body, a deep dose equivalent in excess of 0.1 rem (1 
mSv), a lens dose equivalent in excess of 0.15 rem (1.5 mSv), or a 
shallow dose equivalent to the skin or to the extremities in excess of 
0.5 rem (5 mSv);
    (3) Declared pregnant women likely to receive during the entire 
pregnancy, from radiation sources external to the

[[Page 336]]

body, a deep dose equivalent in excess of 0.1 rem (1 mSv); \2\ and
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    \2\ All of the occupational doses in Sec. 20.1201 continue to be 
applicable to the declared pregnant worker as long as the embryo/fetus 
dose limit is not exceeded.
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    (4) Individuals entering a high or very high radiation area.
    (b) Each licensee shall monitor (see Sec. 20.1204) the occupational 
intake of radioactive material by and assess the committed effective 
dose equivalent to--
    (1) Adults likely to receive, in 1 year, an intake in excess of 10 
percent of the applicable ALI(s) in table 1, columns 1 and 2, of 
appendix B to Sec. Sec. 20.1001-20.2402;
    (2) Minors likely to receive, in 1 year, a committed effective dose 
equivalent in excess of 0.1 rem (1 mSv); and
    (3) Declared pregnant women likely to receive, during the entire 
pregnancy, a committed effective dose equivalent in excess of 0.1 rem (1 
mSv).

[56 FR 23398, May 21, 1991, as amended at 60 FR 20185, Apr. 25, 1995; 63 
FR 39482, July 23, 1998]