§ 835.1001 Design and control.
§ 835.1002 Facility design and modifications.
During the design of new facilities or modification of old
facilities, the following objectives shall be adopted:
(a) Optimization methods shall be used to assure that occupational
exposure is maintained ALARA in developing and justifying facility
design and physical controls.
(b) The design objective for controlling personnel exposure
from external sources of radiation in areas of continuous occupational
occupancy (2000 hours per year) shall be to maintain exposure
levels below an average of 0.5 mrem (5 microsieverts) per hour
and as far below this average as is reasonably achievable. The
design objectives for exposure rates for potential exposure
to a radiological worker where occupancy differs from the above
shall be ALARA and shall not exceed 20 percent of the applicable
standards in § 835.202.
(c) Regarding the control of airborne radioactive material,
the design objective shall be, under normal conditions, to avoid
releases to the workplace atmosphere and in any situation, to
control the inhalation of such material by workers to levels
that are ALARA; confinement and ventilation shall normally be
(d) The design or modification of a facility and the selection
of materials shall include features that facilitate operations,
maintenance, decontamination, and decommissioning.
§ 835.1003 Control procedures.