Bridge (Ship Bridge)
The bridge of a ship is the room or platform from which the ship can be commanded. When a ship is underway the bridge is manned by an OOW (officer of the watch) . During critical maneuvers the captain will be on the bridge supported, perhaps, by an OOW as an extra set of hands, an AB on the wheel and sometimes a pilot if required.
Wheelhouses are the small enclosed parts of a bridge which historically held the ship's steering wheel. Today, ship bridges do not have a separate wheelhouse. In some cases, the term wheelhouse is used to describe the Helm position.
 A union ship is underway if she is not in her port of registration. All Union ships Civilian and military have a registry and a home port
 The bridge must be occupied at all times by the OOW (Who holds the Conn) regardless of the ships location : Space, landed, dock, etc. (Both Military and civilian0
 During the time the Union used the separate Helm position.