33 CFR § 183.528 - Fuel stop valves.

---
identifier: "/us/cfr/t33/s183.528"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 183.528 - Fuel stop valves."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "183.528"
section_name: "Fuel stop valves."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "S"
subchapter_name: "BOATING SAFETY"
part_number: "183"
part_name: "BOATS AND ASSOCIATED EQUIPMENT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
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"
regulatory_source: "CGD 72-61R, 37 FR 15782, Aug. 4, 1972, unless otherwise noted."
cfr_part: "183"
---


# 183.528 Fuel stop valves.

(a) Each electrically operated fuel stop valve in a fuel line between the fuel tank and the engine must:

(1) Open electrically only when the ignition switch is on; and

(2) Operate manually.

(b) If tested in accordance with the fire test under § 183.590, a fuel stop valve installed in a fuel line system requiring metallic fuel lines or “USCG Type A1” hose must not leak fuel.

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