---
kind: "section"
citation: "46 C.F.R. § 147.40"
title: "46"
number: "147.40"
heading: "Materials requiring Commandant (CG-ENG) approval."
url: "https://uscodex.org/cfr/46/147.40"
---

# §147.40. Materials requiring Commandant (CG-ENG) approval.

- (a) Commandant (CG-ENG) approval is required before the following hazardous materials may be on board a vessel as ships' stores:
  - (1) Poison gases of Class 2, Division 2.3 and toxic liquids of Class 6, Division 6.1 which are poisonous by inhalation in Hazard Zone A.
  - (2) Explosives of Divisions 1.1 or 1.2.
  - (3) **Flammable gases, other than those addressed specifically in this subpart.**
  - (4) Forbidden materials listed in [49 CFR 172.101](/cfr/49/172.101.md).
- (b) Request for approval must be submitted to the Commandant (CG-ENG), identify the material, and explain the need for its use.
- (c) **Upon approval, the material is added to the list of materials approved under this section.** A copy of this list is available from the Commandant (CG-ENG) at the address in [§ 147.5](/cfr/46/147.5.md).

## 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; CGD 97-057, 62 FR 51048, Sept. 30, 1997; USCG-2013-0671, 78 FR 60154, Sept. 30, 2013; USCG-2021-0348, 87 FR 3225, Jan. 21, 2022]

### 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; CGD 97-057, 62 FR 51048, Sept. 30, 1997; USCG-2013-0671, 78 FR 60154, Sept. 30, 2013; USCG-2021-0348, 87 FR 3225, Jan. 21, 2022]