46 C.F.R. § 112.15-10
Loads on systems without a temporary emergency power source
If there is no temporary emergency power source, the loads under § 112.15-1 must be arranged so that they can be energized from the final emergency power source.
If there is no temporary emergency power source, the loads under § 112.15-1 must be arranged so that they can be energized from the final emergency power source.