---
kind: "section"
citation: "10 C.F.R. § 35.2075"
title: "10"
number: "35.2075"
heading: "Records of the release of individuals containing unsealed byproduct material or implants containing byproduct material."
url: "https://uscodex.org/cfr/10/35.2075"
---

# §35.2075. Records of the release of individuals containing unsealed byproduct material or implants containing byproduct material.

- (a) A licensee shall retain a record of the basis for authorizing the release of an individual in accordance with [§ 35.75](/cfr/10/35.75.md), 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)](/cfr/10/35.75.md?p=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)](#a) and [(b)](#b) of this section must be retained for 3 years after the date of release of the individual.

## Notes

### Authority

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

Source: 67 FR 20370, Apr. 24, 2002, unless otherwise noted.