An emergency lighting system must not have a switch, except:
(a) In a distribution panel;(b) As required in § 112.43-7 ; or(c) In a circuit that serves a hazardous space such as a paint room or cargo handling room if the switch is located outside of the hazardous location.
46 C.F.R. §112.43-1
CGD 74-125A, 47 FR 15267, Apr. 8, 1982, as amended by CGD 94-108, 61 FR 28287, June 4, 1996