46 C.F.R. § 144.710
Overnight accommodations
Overnight accommodations must be provided for crewmembers if it is operated more than 12 hours in a 24-hour period, unless the crew is put ashore and the vessel is provided with a new crew.
Overnight accommodations must be provided for crewmembers if it is operated more than 12 hours in a 24-hour period, unless the crew is put ashore and the vessel is provided with a new crew.