(a) A licensee shall retain a record of the basis for authorizing the release of an individual in accordance with § 35.75, if the total effective dose equivalent is calculated by—
(1) Using the retained activity rather than the activity administered;
(2) Using an occupancy factor less than 0.25 at 1 meter;
(3) Using the biological or effective half-life; or
(4) Considering the shielding by tissue.
(b) A licensee shall retain a record that the instructions required by § 35.75(b) were provided to a breast-feeding female if the radiation dose to the infant or child from continued breast-feeding could result in a total effective dose equivalent exceeding 5 mSv (0.5 rem).
(c) The records required by paragraphs (a) and (b) of this section must be retained for 3 years after the date of release of the individual.
authority: Atomic Energy Act of 1954, secs. 81, 161, 181, 182, 183, 223, 234, 274 (
42 U.S.C. 2111,
2201,
2231,
2232,
2233,
2273,
2282,
2021; Energy Reorganization Act of 1974, secs. 201, 206 (
42 U.S.C. 5841,
5846;
44 U.S.C. 3504 note
source: 67 FR 20370, Apr. 24, 2002, unless otherwise noted.
cite as: 10 CFR 35.2075