[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: 10CFR835.1002]

[Page 468]
 
                            TITLE 10--ENERGY
 
                    CHAPTER III--DEPARTMENT OF ENERGY
 
PART 835--OCCUPATIONAL RADIATION PROTECTION--Table of Contents
 
                      Subpart K--Design and Control
 
Sec. 835.1002  Facility design and modifications.

    During the design of new facilities or modification of existing 
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 Sec. 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 used.
    (d) The design or modification of a facility and the selection of 
materials shall include features that facilitate operations, 
maintenance, decontamination, and decommissioning.

[58 FR 65485, Dec. 14, 1993, as amended at 63 FR 59686, Nov. 4, 1998]