http://www.lvtlawyers.com.vn/en/bo-luat-hang-hai/towage-of-seagoing-vessels.html

Article 180.- The right to command towage of seagoing vessels
1. The towing vessel and the seagoing vessel or other towed objects constitute a towage team. A towage team shall be set up as soon as the towing vessel and other vessels forming the towage team are ready to carry out necessary maneuvers on the order of the commander of the towage team, and it shall break up as soon as the last maneuver is completed and the vessels forming the towage team have sailed away one from another to a safe distance.
2. The commander of the towage team shall be determined by agreement between the parties to the contract for towage of the seagoing –vessel; in the absence of such agreement, he/she shall be determined by local custom.
3. The right to command assistance towage in seaport waters shall be vested in the master of the towed vessel.

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