---
kind: "section"
citation: "33 C.F.R. § 183.558"
title: "33"
number: "183.558"
heading: "Hoses and connections."
url: "https://uscodex.org/cfr/33/183.558"
---

# §183.558. Hoses and connections.

- (a) Each hose used between the fuel pump and the carburetor must be “USCG Type A1” hose.
- (b) **Each hose used—**
  - (1) For a vent line or fill line must be:
    - (i) “USCG Type A1” or “USCG Type A2”; or
    - (ii) “USCG Type B1” or “USCG Type B2” if no more than five ounces of fuel is discharged in 2 1/2 minutes when:
      - (A) The hose is severed at the point where maximum drainage of fuel would occur,
      - (B) The boat is in its static floating position, and
      - (C) The fuel system is filled to the capacity market on the tank label under [§ 183.514(b)(3)](/cfr/33/183.514.md?p=b-3).
  - (2) From the fuel tank to the fuel inlet connection on the engine must be:
    - (i) “USCG Type A1”; or
    - (ii) “USCG Type B1” if no more than five ounces of fuel is discharged in 2 1/2 minutes when:
      - (A) The hose is severed at the point where maximum drainage of fuel would occur,
      - (B) The boat is in its static floating position, and
      - (C) The fuel system is filled to the capacity marked on the tank label under [§ 183.514(b)(3)](/cfr/33/183.514.md?p=b-3).
- (c) Each hose must be secured by:
  - (1) A swaged sleeve;
  - (2) A sleeve and threaded insert; or
  - (3) **A hose clamp.**
- (d) The inside diameter of a hose must not exceed the actual minor outside diameter of the connecting spud, pipe, or fitting by more than the distance shown in Table 8.

## Notes

### Amendments

[CGD 74-209, 42 FR 5950, Jan. 31, 1977, as amended by CGD 85-098, 52 FR 19728, May 27, 1987]

### Source

Source: CGD 74-209, 42 FR 5950, Jan. 31, 1977, unless otherwise noted.

### Authority

Authority: 46 U.S.C. 4302; Pub. L. 103-206, 107 Stat. 2439; and Department of Homeland Security Delegation No. 0170.1, para. II, (92)(b). Subpart E is also authorized by Pub. L. 114-120, 130 Stat. 27

### Source

Source: CGD 72-61R, 37 FR 15782, Aug. 4, 1972, unless otherwise noted.

### Amendments

[CGD 74-209, 42 FR 5950, Jan. 31, 1977, as amended by CGD 85-098, 52 FR 19728, May 27, 1987]