[Code of Federal Regulations]
[Title 41, Volume 1]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 41CFR50-204.22]

[Page 31]
 
           TITLE 41--PUBLIC CONTRACTS AND PROPERTY MANAGEMENT
 
            CHAPTER 50--PUBLIC CONTRACTS, DEPARTMENT OF LABOR
 
PART 50-204_SAFETY AND HEALTH STANDARDS FOR FEDERAL SUPPLY CONTRACTS
--Table of Contents
 
                      Subpart C_Radiation Standards
 
Sec.  50-204.22  Exposure to airborne radioactive material.

    (a) No employer shall possess, use or transport radioactive material 
in such a manner as to cause any employee, within a restricted area, to 
be exposed to airborne radioactive material in an average concentration 
in excess of the limits specified in Table I of Appendix B to 10 CFR 
Part 20. The limits given in Table I are for exposure to the 
concentrations specified for 40 hours in any workweek of 7 consecutive 
days. In any such period where the number of hours of exposure is less 
than 40, the limits specified in the table may be increased 
proportionately. In any such period where the number of hours of 
exposure is greater than 40, the limits specified in the table shall be 
decreased proportionately.
    (b) No employer shall possess, use, or transfer radioactive material 
in such a manner as to cause any individual within a restricted area, 
who is under 18 years of age to be exposed to airborne radioactive 
material in an average concentration in excess of the limits specified 
in Table II of Appendix B to 10 CFR Part 20. For purposes of this 
paragraph, concentrations may be averaged over periods not greater than 
1 week.
    (c) Exposed as used in this section means that the individual is 
present in an airborne concentration. No allowance shall be made for the 
use of protective clothing or equipment, or particle size, except as 
authorized by the Director, Bureau of Labor Standards.