[Code of Federal Regulations]
[Title 10, Volume 4, Parts 500 to end]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR835.402]

[Page 461-462]
 
                            TITLE 10--ENERGY
 
                    CHAPTER III--DEPARTMENT OF ENERGY
 
PART 835--OCCUPATIONAL RADIATION PROTECTION--Table of Contents
 
             Subpart E--Monitoring of Individuals and Areas
 
Sec. 835.402  Individual monitoring.

    (a) For the purpose of monitoring individual exposures to external 
radiation, personnel dosimeters shall be provided to and used by:
    (1) Radiological workers who, under typical conditions, are likely 
to receive one or more of the following:
    (i) An effective dose equivalent to the whole body of 0.1 rem (0.001 
sievert) or more in a year;

[[Page 462]]

    (ii) A shallow dose equivalent to the skin or to any extremity of 5 
rems (0.05 sievert) or more in a year;
    (iii) A lens of the eye dose equivalent of 1.5 rems (0.015 sievert) 
or more in a year;
    (2) Declared pregnant workers who are likely to receive from 
external sources a dose equivalent to the embryo/fetus in excess of 10 
percent of the limit at Sec. 835.206(a);
    (3) Occupationally exposed minors likely to receive a dose in excess 
of 50 percent of the applicable limits at Sec. 835.207 in a year from 
external sources;
    (4) Members of the public entering a controlled area likely to 
receive a dose in excess of 50 percent of the limit at Sec. 835.208 in a 
year from external sources; and
    (5) Individuals entering a high or very high radiation area.
    (b) External dose monitoring programs implemented to demonstrate 
compliance with Sec. 835.402(a) shall be adequate to demonstrate 
compliance with the dose limits established in subpart C of this part 
and shall be:
    (1) Accredited, or excepted from accreditation, in accordance with 
the DOE Laboratory Accreditation Program for Personnel Dosimetry; or
    (2) Determined by the Secretarial Officer responsible for 
environment, safety and health matters to have performance substantially 
equivalent to that of programs accredited under the DOE Laboratory 
Accreditation Program for Personnel Dosimetry.
    (c) For the purpose of monitoring individual exposures to internal 
radiation, internal dosimetry programs (including routine bioassay 
programs) shall be conducted for:
    (1) Radiological workers who, under typical conditions, are likely 
to receive a committed effective dose equivalent of 0.1 rem (0.001 
sievert) or more from all occupational radionuclide intakes in a year;
    (2) Declared pregnant workers likely to receive an intake or intakes 
resulting in a dose equivalent to the embryo/fetus in excess of 10 
percent of the limit stated at Sec. 835.206(a);
    (3) Occupationally exposed minors who are likely to receive a dose 
in excess of 50 percent of the applicable limit stated at Sec. 835.207 
from all radionuclide intakes in a year; or
    (4) Members of the public entering a controlled area likely to 
receive a dose in excess of 50 percent of the limit stated at 
Sec. 835.208 from all radionuclide intakes in a year.
    (d) Internal dose monitoring programs implemented to demonstrate 
compliance with Sec. 835.402(c) shall be adequate to demonstrate 
compliance with the dose limits established in subpart C of this part 
and shall be:
    (1) Accredited, or excepted from accreditation, in accordance with 
the DOE Laboratory Accreditation Program for Radiobioassay; or,
    (2) Determined by the Secretarial Officer responsible for 
environment, safety and health matters to have performance substantially 
equivalent to that of programs accredited under the DOE Laboratory 
Accreditation Program for Radiobioassy.

[63 FR 59683, Nov. 4, 1998]