The 2006 Maritime Labor Convention prescribes the rights and obligations of crew members from boarding to their return to their place of residence. The master of the ship commands other crew members. The master of the ship must have passed the exam test and have valid test certificates in order to be able to board the ship in that occupation. The master is authorized to carry out administrative tasks authorized to issue orders to all persons boarded on a ship, which may even restrict his freedom of movement. These jobs are also referred to as public authorizations performed on behalf of the flagship state. The master is also authorized to enter into contracts and all work related to the cargo. The master's role in handing over the goods is to hand over the goods to an authorized bill of lading holder, and he must be careful that the original bill of lading is presented at the handing over of the goods. The master's duty is to rescue the passengers and persons on board the ship in case of 1-4 an accident, and if another ship participates in the accident, he must also assist the persons on that ship. master is obligated to inform the shipowner of all actions and enter all activities into the ship's log.