46 C.F.R. § 140.415

Individuals, who are not crewmembers, on board a towing vessel must receive a safety orientation prior to getting underway or as soon as practicable thereafter, to include:

(a) The location, operation, and use of lifesaving equipment;

(b) Emergency procedures;

(c) Methods to notify crewmembers in the event of an emergency; and

(d) Prevention of falls overboard.