10. He is responsible for any neglect through which the validity of the insurance to ship or cargo is called into question.
11. He must enforce the rule that the vessel is never to be left without an officer in charge, either at sea or in harbor, day or night.
12. He shall see that a licensed engineer officer is on duty when steam is up on a boiler.
13. When maneuvering—in and out of port—or at sea, he should see that the most qualified engineer officers on board are in charge of the working of the engines.
14. He must see that no waste or extravagance is practiced with the ship's stores and provisions.
15. He must see that the lawful scale of provisions is issued to the crew.
16. He must see that no prohibited cargo or stores come aboard, and that his hatches are battened down before going to sea. He is responsible for the correct lading of the vessel.
17. He must enter and clear his vessel at the custom house. He must see that the proper papers are produced. Ship's register (with his name entered as master); Manifest; Bills of Health; Passenger and stores list; and any other papers that may be required.
18. He must be familiar with the laws, rules, and regulations in force in the various countries and at the various ports he visits.
19. He should find out where to obtain the services of the local medical authorities, and the police authorities, when in a strange port.