13.2.10.1 Alleyways, internal and external stairways,
and exits giving access to, and including, the muster and embarkation
stations should be adequately lit. (See also section 8).
13.2.10.2 Adequate lighting is to be provided
in the vicinity of survival craft, launching appliance(s) (when provided)
and the overside area of sea in way of the launching position(s).
The lighting should be supplied from the emergency source of power.