46 C.F.R. § 185.410 Watchmen.
Title 46 - Shipping
The owner, charterer, master, or managing operator of a vessel carrying overnight passengers shall have a suitable number of watchmen patrol throughout the vessel during the nighttime, whether or not the vessel is underway, to guard against, and give alarm in case of, a fire, man overboard, or other dangerous situation. [CGD 85–080, 61 FR 1005, Jan. 10, 1996, as amended at 62 FR 51359, Sept. 30, 1997]
Title 46: Shipping
PART 185—OPERATIONS
Subpart D—Crew Requirements
§ 185.410 Watchmen.