department The steward's department Other. Deck department Officer positions in the deck department include but not limited to the Master and his Chief, Second, and Third officers. The official classifications for unlicensed members of the deck department are Able Seaman and Ordinary Seaman. A common deck crew for a ship includes: (1) Chief Officer/Chief Mate (1) Second Officer/Second Mate (1) Third Officer/Third Mate (1) Boatswain (2–6) Able Seamen (0–2) Ordinary Seamen A deck cadet is a person who is carrying out mandatory sea time to achieve their officer of the watch certificate. Their time on board is spent learning the operations and tasks of everyday life on a merchant vessel. Engine department A ship's engine department consists of the members of a ship's crew that operate and maintain the propulsion and other systems on board the vessel. Engine staff also deal with the "Hotel" facilities on board, notably the sewage, lighting, air conditioning and water systems. They deal with bulk fuel transfers, and require training in firefighting and first aid, as well as in dealing with the ship's boats and other nautical tasks- especially with cargo loading/discharging gear and safety systems, though the specific cargo discharge function remains the responsibility of deck officers and deck workers. On LPG and LNG tankers, however, a cargo engineer works with the deck department during cargo operations, as well as being a watchkeeping engineer. A common engine crew for a ship includes: (1) Chief engineer (1) Second engineer / first assistant engineer (1) Third engineer / second assistant engineer (1 or 2) Fourth engineer / third assistant engineer (0–2) Fifth engineer / junior engineer (1–3) Oiler (unlicensed qualified rating) (0–3) Greaser (unlicensed qualified rating) (1–5) Entry-level rating (such as wiper (occupation), utilityman, etc.) Many American ships also carry a motorman. Other possible positions include machinist, electrician, refrigeration engineer, and tankerman. Engine cadets are engineer trainees who are completing sea time necessary before they can obtain a watchkeeping license. Steward's department A typical steward's department for a cargo ship would be composed of a Chief Steward, a chief cook, and a Steward's Assistant. All three positions are typically filled by unlicensed personnel. The chief steward directs, instructs, and assigns personnel performing such functions as preparing and serving meals; cleaning and maintaining officers' quarters and steward department areas; and receiving, issuing, and inventorying stores. On large passenger vessels, the Catering Department is headed by the Chief