§ 835.203 Combining internal and external dose equivalents 





 
§ 835.204  Planned special exposures. 

 


  (a) A planned special exposure may be authorized for a radiological 
worker to receive doses in addition to and accounted for separately 
from the doses received under the limits specified in § 835.202(a), 
provided that each of the following conditions is satisfied: 
  (1) The planned special exposure is considered only in an 
exceptional situation when alternatives that might prevent a 
radiological worker from exceeding the limit in § 835.202(a)(1) 
are unavailable or impractical; 
  (2) The contractor management (and employer, if the employer 
is not the contractor) specifically requests the planned special 
exposure, in writing; and 
  (3) Joint written approval from the appropriate DOE Headquarters 
program office and the Assistant Secretary for Environment, 
Safety and Health is received. 
  (b) Prior to requesting an individual to participate in an 
authorized planned special exposure, the individual's dose from 
all previous planned special exposures and all doses in excess 
of the occupational dose limits shall be determined. 
  (c) An individual shall not receive a planned special exposure 
that, in addition to the doses determined in § 835.204(b), would 
result in a dose exceeding the following: 
  (1) A total effective dose equivalent of 5 rems (0.05 sievert) 
in the current year; and 
  (2) A cumulative total effective dose equivalent of 25 rems 
(0.25 sievert). 
  (d) Prior to a planned special exposure, written consent shall 
be obtained from each individual involved. Each individual shall 
be: 
  (1) Informed of the purpose of the planned operations and 
procedures to be used; 
  (2) Informed of the estimated doses and associated potential 
risks and specific radiological conditions and other hazards 
which might be involved in performing the task; and 
  (3) Instructed in the measures to be taken to keep the dose 
ALARA considering other risks that may be present. 
  (e) Records of the conduct of a planned special exposure shall 
be maintained and a written report submitted within 30 days 
after the planned special exposure to the approving organizations 
identified in § 835.204(a)(3). 
  (f) The dose from planned special exposures is not to be considered 
in controlling future occupational dose of the individual under 
§ 835.202(a), but is to be included in records and reports required 
under this part. 




§ 835.205  Determination of compliance for non-uniform exposure