---
kind: "section"
citation: "10 C.F.R. § 35.315"
title: "10"
number: "35.315"
heading: "Safety precautions."
url: "https://uscodex.org/cfr/10/35.315"
---

# §35.315. Safety precautions.

- (a) For each patient or human research subject who cannot be released under [§ 35.75](/cfr/10/35.75.md), a licensee shall—
  - (1) **Quarter the patient or the human research subject either in—**
    - (i) A private room with a private sanitary facility; or
    - (ii) A room, with a private sanitary facility, with another individual who also has received therapy with unsealed byproduct material and who also cannot be released under [§ 35.75](/cfr/10/35.75.md);
  - (2) **Visibly post the patient's or the human research subject's room with a “Radioactive Materials” sign.**
  - (3) Note on the door or in the patient's or human research subject's chart where and how long visitors may stay in the patient's or the human research subject's room; and
  - (4) Either monitor material and items removed from the patient's or the human research subject's room to determine that their radioactivity cannot be distinguished from the natural background radiation level with a radiation detection survey instrument set on its most sensitive scale and with no interposed shielding, or handle the material and items as radioactive waste.
- (b) A licensee shall notify the Radiation Safety Officer, or his or her designee, and an authorized user as soon as possible if the patient or human research subject has a medical emergency or dies.

## Notes

### Amendments

[67 FR 20370, Apr. 24, 2002, as amended at 68 FR 19325, Apr. 21, 2003]

### 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.

### Amendments

[67 FR 20370, Apr. 24, 2002, as amended at 68 FR 19325, Apr. 21, 2003]