CFR > Title 10 - Energy > CHAPTER III—DEPARTMENT OF ENERGY > PART 835—OCCUPATIONAL RADIATION PROTECTION > SUBPART C—Standards for Internal and External Exposure (§835.201 to §835.209) > 835.203—Combining internal and external equivalent doses.

835.203—Combining internal and external equivalent doses.

(a) The total effective dose during a year shall be determined by summing the effective dose from external exposures and the committed effective dose from intakes during the year.
(b) Determinations of the effective dose shall be made using the radiation and tissue weighting factor values provided in § 835.2.

Code of Federal Regulations

[72 FR 31926, June 8, 2007]