What provides authority to occupy the main track within Yard Limits?

• A. A signal
• B. A track permit
• C. Verbal permission
• D. All of the above

Answer: (D)

Inside Yard Limits the main track is controlled, so you can’t occupy it without clear authority. Authority can come from a signal that authorizes movement, from a written track permit that specifies the job and limits, or from verbal permission given by a supervisor when immediate action is needed. Each method establishes who is responsible for the movement and when it’s allowed, and you must follow the form in effect. If a signal is governing, you follow its aspect; if a track permit is in place, you operate under its terms; if verbal permission is given, you should record it and proceed only as approved by the supervisor. Therefore, any of these can provide the required authority, so all of the above are valid sources of authority to occupy the main track within Yard Limits.