§ 835.403 Area monitoring.
§ 835.404 Radioactive contamination control and monitoring.
(a) Instruments and techniques used for radioactive contamination
monitoring and control shall be adequate to ensure compliance
with the requirements specified in this section.
(b) Appropriate controls shall be maintained and verified
which prevent the inadvertent transfer of removable contamination
to locations outside of radiological areas under normal operating
(c) Any area in which contamination levels exceed the values
specified in appendix D of this part shall be:
(1) Posted in accordance with § 835.603; and
(2) Controlled in a manner commensurate with the physical
and chemical characteristics of the contaminant, the radionuclides
present, and the fixed and removable contamination levels.
(d) Areas with fixed contamination exceeding the total radioactivity
values specified in appendix D of this part may be located outside
of radiological areas provided the following conditions are
(1) Removable contamination levels are below the levels specified
in appendix D of this part;
(2) Unrestricted access to the area is not likely to cause
any individual to receive a total effective dose equivalent
in excess of 0.1 rem (0.001 sievert) in a year;
(3) The area is routinely monitored;
(4) The area is clearly marked to alert personnel of the contaminated
(5) Appropriate administrative procedures are established
and exercised to maintain control of these areas; and
(6) Dose rates do not exceed levels which would require posting
in accordance with § 835.603.
(e) Entry control pursuant to § 835.501 and posting pursuant
to § 835.603 are not required for areas with fixed contamination
meeting the conditions of § 835.404(d).
(f) Appropriate monitoring to detect and prevent the spread
of contamination shall be performed by individuals exiting radiological
areas established to control removable contamination and/or
(g) Protective clothing shall be required for entry to areas
in which removable contamination exists at levels exceeding
those specified in appendix D to this part.
Subpart F-Entry Control Program