46 CFR § 120.312 - Power sources on vessels of more than 19.8 meters (65 feet) in length carrying more than 600 passengers or with overnight accommodations for more than 49 passengers.
---
identifier: "/us/cfr/t46/s120.312"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 120.312 - Power sources on vessels of more than 19.8 meters (65 feet) in length carrying more than 600 passengers or with overnight accommodations for more than 49 passengers."
title_number: 46
title_name: "Shipping"
section_number: "120.312"
section_name: "Power sources on vessels of more than 19.8 meters (65 feet) in length carrying more than 600 passengers or with overnight accommodations for more than 49 passengers."
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"
---
# 120.312 Power sources on vessels of more than 19.8 meters (65 feet) in length carrying more than 600 passengers or with overnight accommodations for more than 49 passengers.
A vessel of more than 19.8 meters (65 feet) in length carrying more than 600 passengers or with overnight accommodations for more than 49 passengers must have:
(a) Two generator sets;
(b) An electrical power system that complies with the requirements of §§ 111.10-4, 111.10-5, and 111.10-9, in subchapter J of this chapter;
(c) A final emergency power source, as defined by § 112.01-20 in subchapter J of this chapter, with sufficient capacity to power the loads listed in § 112.15-5 in subchapter J of this chapter for three hours; and
(d) The final emergency power source located outside the machinery space.
[CGD 85-080, 61 FR 928, Jan. 10, 1996, as amended by 62 FR 51352, Sept. 30, 1997; USCG-2011-0618, 76 FR 60754, Sept. 30, 2011]