---
kind: "section"
citation: "10 C.F.R. § 31.7"
title: "10"
number: "31.7"
heading: "Luminous safety devices for use in aircraft."
url: "https://uscodex.org/cfr/10/31.7"
---

# §31.7. Luminous safety devices for use in aircraft.

- (a) A general license is hereby issued to own, receive, acquire, possess, and use tritium or promethium-147 contained in luminous safety devices for use in aircraft, provided each device contains not more than 10 curies of tritium or 300 millicuries of promethium-147 and that each device has been manufactured, assembled or initially transferred in accordance with a license issued under the provisions of [§ 32.53](/cfr/10/32.53.md) of this chapter or manufactured or assembled in accordance with a specific license issued by an Agreement State which authorizes manufacture or assembly of the device for distribution to persons generally licensed by the Agreement State.
- (b) Persons who own, receive, acquire, possess or use luminous safety devices pursuant to the general license in this section are exempt from the requirements of parts [19](/cfr/10/part19.md), [20](/cfr/10/part20.md), and 21, of this chapter, except that they shall comply with the provisions of §§ [20.2201](/cfr/10/20.2201.md), and [20.2202](/cfr/10/20.2202.md) of this chapter.
- (c) This general license does not authorize the manufacture, assembly, repair or import of luminous safety devices containing tritium or promethium-147.
- (d) This general license does not authorize the export of luminous safety devices containing tritium or promethium-147.
- (e) This general license does not authorize the ownership, receipt, acquisition, possession or use of promethium-147 contained in instrument dials.

## Notes

### Amendments

[30 FR 8189, June 26, 1965, as amended at 33 FR 6463, Apr. 27, 1968; 38 FR 22220, Aug. 17, 1973; 42 FR 28896, June 6, 1977; 43 FR 6922, Feb. 17, 1978; 56 FR 23471, May 21, 1991; 56 FR 61352, Dec. 3, 1991; 58 FR 67659, Dec. 22, 1993]

### Authority

Authority: Atomic Energy Act of 1954, secs. 81, 161, 183, 223, 234, 274 (42 U.S.C. 2111, 2201, 2233, 2273, 2282, 2021); Energy Reorganization Act of 1974, secs. 201, 202, 206 (42 U.S.C. 5841, 5842, 5846); 44 U.S.C. 3504 note.

### Amendments

[30 FR 8189, June 26, 1965, as amended at 33 FR 6463, Apr. 27, 1968; 38 FR 22220, Aug. 17, 1973; 42 FR 28896, June 6, 1977; 43 FR 6922, Feb. 17, 1978; 56 FR 23471, May 21, 1991; 56 FR 61352, Dec. 3, 1991; 58 FR 67659, Dec. 22, 1993]