---
kind: "section"
citation: "46 C.F.R. § 38.01-2"
title: "46"
number: "38.01-2"
heading: "Transportation of portable cylinders or portable tanks containing or having previously contained liquefied flammable gases in dry cargo spaces—TB/ALL."
url: "https://uscodex.org/cfr/46/38.01-2"
---

# §38.01-2. Transportation of portable cylinders or portable tanks containing or having previously contained liquefied flammable gases in dry cargo spaces—TB/ALL.

- (a) DOT cylinders, DOT Specification portable tanks or other approved portable tanks containing liquefied flammable gases may be transported under deck, provided the following requirements are met:
  - (1) The cargo space shall be provided with efficient means of ventilation, be protected from artificial heat, and be readily accessible from hatches.
  - (2) Containers shall be stored in such a position that the safety relief device is in communication with the vapor space of the container. They shall be properly stowed, dunnaged, and secured to prevent movement in any direction.
  - (3) Unless a method acceptable to the Commandant is used, the containers shall not be overstowed in the same dry cargo space with other liquefied flammable gas containers, nor with other cargo.
  - (4) The containers shall be suitably protected against physical damage from other cargo, ship's stores, or equipment in such spaces.
  - (5) Cylinders shall have their valves protected at all times by one of the following methods:
    - (i) By metal caps securely attached to the cylinders and of sufficient strength to protect the valves from injury.
    - (ii) By having the valves recessed into the cylinders or otherwise protected so that they will not be subject to a blow if the cylinder is dropped on a flat surface.
  - (6) Portable tanks shall have their valves protected at all times by a housing in accordance with the requirements under which they were manufactured.
  - (7) Electrical circuits in the cargo spaces must meet the hazardous area requirements in subchapter J (Electrical Engineering Regulations) of this chapter. If an electrical circuit does not meet those requirements, it must be deenergized by a positive means and not reenergized until the cargo has been removed and the space has been tested and found free of flammable vapor.
  - (8) During the stowage of portable cylinders or portable tanks in a hold or compartment that is not fitted with electrical fixtures meeting the hazardous area requirements of subchapter J (Electrical Engineering Regulations) of this chapter, portable lights must not be used within the space unless the portable lights are explosion-proof. Electrical connections for portable lights must be made from outlets on the weather deck. Hand flashlights used in the stowage area must be explosion-proof.
  - (9) The following dangerous cargoes shall not be stowed in the same hold or compartment with liquefied flammable gas containers:
    - (i) Division 1.1, 1.2, 1.3, or 1.4 (explosive) materials, as defined in [49 CFR 173.50](/cfr/49/173.50.md).
    - (ii) **Flammable solids.**
    - (iii) **Oxidizing materials.**
    - (iv) **Corrosive liquids.**
    - (v) **Poisonous articles.**
    - (vi) **Cotton and similar fibrous materials.**

## Notes

### Amendments

[CGFR 66-33, 31 FR 15269, Dec. 6, 1966, as amended by CGFR 68-32, 33 FR 5714, Apr. 12, 1968; CGD 74-125A, 47 FR 15231, Apr. 8, 1982; CGD 92-050, 59 FR 39666, Aug. 5, 1994]

### Authority

Authority: 46 U.S.C. 2103, 3306, 3703; 49 U.S.C. 5101, 5106; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGFR 66-33, 31 FR 15269, Dec. 6, 1966, unless otherwise noted.

### Amendments

[CGFR 66-33, 31 FR 15269, Dec. 6, 1966, as amended by CGFR 68-32, 33 FR 5714, Apr. 12, 1968; CGD 74-125A, 47 FR 15231, Apr. 8, 1982; CGD 92-050, 59 FR 39666, Aug. 5, 1994]