46 C.F.R. § 15.910
Towing vessels
No person may serve as a Master or Mate (Pilot) of any towing vessel without meeting the requirements of § 15.805(a)(5) or 15.810(d).
No person may serve as a Master or Mate (Pilot) of any towing vessel without meeting the requirements of § 15.805(a)(5) or 15.810(d).