46 C.F.R. § 111.10-5 Multiple energy sources.
Title 46 - Shipping
Failure of any single generating set energy source such as a boiler, diesel, gas turbine, or steam turbine must not cause all generating sets required in §111.10–3 to be inoperable.
Title 46: Shipping
PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS
Subpart 111.10—Power Supply
§ 111.10-5 Multiple energy sources.

