46 C.F.R. § 112.40-1 General requirements.
Title 46 - Shipping
Installations requiring alternating current for the operation of communication equipment or other apparatus essential under temporary emergency conditions must be provided with the necessary conversion equipment. If the conversion equipment operates both under normal conditions and under temporary emergency conditions, the conversion equipment must be provided in duplicate.
Title 46: Shipping
PART 112—EMERGENCY LIGHTING AND POWER SYSTEMS
Subpart 112.40—Alternating-Current Temporary Source of Supply
§ 112.40-1 General requirements.
