In North America, the Conductor manages a freight, passenger, or other type of train, and directly supervises the train crew, which can include a brakeman, flagman, ticket collector, assistant conductor, and on board service personnel, and is responsible for the movement of the train. The engineer (driver) takes direction from the Conductor. The portman (station master), and additional "engine crew" members (fireman, pilot engineer) share responsibility for safe and efficient train operation and adherence to railway rules and procedures. On some railroads, union contracts specify that a conductor must progress to engineer.