[Code of Federal Regulations] [Title 10, Volume 4] [Revised as of January 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 10CFR835.203] [Page 540] TITLE 10--ENERGY CHAPTER III--DEPARTMENT OF ENERGY PART 835_OCCUPATIONAL RADIATION PROTECTION--Table of Contents Subpart C_Standards for Internal and External Exposure Sec. 835.203 Combining internal and external dose equivalents. (a) The total effective dose equivalent during a year shall be determined by summing the effective dose equivalent from external exposures and the committed effective dose equivalent from intakes during the year. (b) Determinations of the effective dose equivalent shall be made using the weighting factor values provided in Sec. 835.2. [58 FR 65485, Dec. 14, 1993, as amended at 63 FR 59682, Nov. 4, 1998]