---
kind: "section"
citation: "46 C.F.R. § 147.60"
title: "46"
number: "147.60"
heading: "Compressed gases."
url: "https://uscodex.org/cfr/46/147.60"
---

# §147.60. Compressed gases.

- (a) **Cylinder requirements.** Cylinders used for containing hazardous ships' stores that are compressed gases must be—
  - (1) Authorized for the proper shipping name of the gas in accordance with 49 CFR [172.101](/cfr/49/172.101.md) and [49](/cfr/49/49.md) CFR [part 173](/cfr/46/part173.md);
  - (2) Constructed in accordance with [subpart C](/cfr/46/subpartC.md) of [49 CFR part 178](/cfr/49/part178.md) or exempted under [49 CFR part 107](/cfr/49/part107.md);
  - (3) Filled, marked, and inspected in accordance with [49 CFR 173.301 through 173.308](/cfr/49/173.301..173.308.md); and
  - (4) Except as provided in 46 CFR [147.65](/cfr/46/147.65.md), [147.66](/cfr/46/147.66.md), and [147.67](/cfr/46/147.67.md), maintained and retested in accordance with [49 CFR 180](/cfr/49/180.md).
- (b) **Stowage and care of cylinders.**
  - (1) Cylinders must always be secured and, when not in use, they must be stowed in a rack in an upright position, with the valve protection cap in place.
  - (2) Lockers or housings must be vented to the open air near the top and bottom for positive circulation of vapors.
  - (3) Cylinders must be protected from all sources of heat which may cause the cylinders to be heated to a temperature higher than 130 °F.
- (c) **Pressure vessels other than cylinders.** Pressure vessels, other than cylinders subject to [paragraph (a)](#a) of this section, used for containing ships' stores that are compressed gases must—
  - (1) Be constructed and inspected in accordance with [part 54](/cfr/46/part54.md) of this chapter; and
  - (2) **Carry only nitrogen or air, unless permission is granted by Commandant (CG-ENG) to do otherwise.**

## Notes

### Amendments

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 95-072, 60 FR 50465, Sept. 29, 19955; CGD 96-041, 61 FR 50731, Sept. 27, 1996; USCG-2006-24797, 77 FR 33886, June 7, 2012; USCG-2013-0671, 78 FR 60154, Sept. 30, 2013]

### Authority

Authority: 46 U.S.C. 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation 00170.1, Revision No. 01.4.

### Source

Source: CGD 84-044, 53 FR 7749, Mar. 10, 1988, unless otherwise noted.

### Amendments

[CGD 84-044, 53 FR 7749, Mar. 10, 1988, as amended by CGD 95-072, 60 FR 50465, Sept. 29, 19955; CGD 96-041, 61 FR 50731, Sept. 27, 1996; USCG-2006-24797, 77 FR 33886, June 7, 2012; USCG-2013-0671, 78 FR 60154, Sept. 30, 2013]