46 CFR § 120.322 - Multiple generators.

---
identifier: "/us/cfr/t46/s120.322"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 120.322 - Multiple generators."
title_number: 46
title_name: "Shipping"
section_number: "120.322"
section_name: "Multiple generators."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "K"
subchapter_name: "SMALL PASSENGER VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS"
part_number: "120"
part_name: "ELECTRICAL INSTALLATION"
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. 2103, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 85-080, 61 FR 928, Jan. 10, 1996, unless otherwise noted."
cfr_part: "120"
---


# 120.322 Multiple generators.

When a vessel is equipped with two or more generators to supply ship's service power, the following requirements must be met:

(a) Each generator must have an independent prime mover; and

(b) The generator circuit breakers must be interlocked to prevent the generators from being simultaneously connected to the switchboard, except for the circuit breakers of a generator operated in parallel with another generator when the installation meets §§ 111.12-11(f), and 111.30-25(d) in subchapter J of this chapter.