The OOD on board ship represents the captain and as such has unquestioned authority. Only the executive and commanding officer may order him relieved. The authority of the OOD extends to the accommodation ladders or gangways. He is perfectly within his rights to order any approaching boat to "lay off" and keep clear until in his judgment he can receive her alongside. The OOD normally conveys orders to the embarked troops via the Troop Commander but in emergencies he may issue orders direct to you or any person on board. The _bridge_ is the "Command Post" of the ship when underway, as the quarterdeck is at anchor. The officer-of-the-deck is in charge of the ship as the representative of the captain. Admittance to the bridge when underway should be at the captain's invitation or with his permission. You may usually obtain permission through the executive officer. The _quarterdeck_ is the seat of authority; as such it is respected. The starboard side of the quarterdeck is reserved for the captain (and admiral, if a flagship). No person trespasses upon it except when necessary in the course of work or official business. All persons salute the quarterdeck when entering upon it. When pacing the deck with another officer the place of honor is outboard, and when reversing direction each turns towards the other. The port side of the quarterdeck is reserved for commissioned officers, and the crew has all the rest of the weather decks of the ship. However, every part of the deck (and the ship) is assigned to a particular division so that the crew has ample space. Not unnaturally every division considers it has a prior though unwritten right to its own part of the ship. For gatherings such as smokers and movies, all divisions have equal privileges at the scene of assemblage. Space and chairs are reserved for officers and for CPO's, where available, and mess benches are brought up for the men. The seniors have the place of honor. When the captain (and admiral) arrive those present are called to attention. The captain customarily gives "carry on" at once through the executive officer or master-at-arms who accompanies him to his seat. If you take passage on board a naval vessel you will be assigned to one of several messes on board ship, the wardroom or junior officer's mess. In off-hours, particularly in the evenings, you can foregather there for cards, yarns or reading. Generally a percolator is available with hot coffee. The Executive Officer is ex officio the president of the wardroom mess. The wardroom officers are the division officers and the heads of departments. All officers await the arrival of the Executive Officer before being seated at lunch and dinner. If it is necessary for you to leave early, ask the head at your table for permission to be excused as you would at home. The seating arrangement in the messes is by order of seniority.