Which category contains the four items Track warrants, Track bulletins, track and time, track permits?

• A. Authorities
• B. Speed restrictions
• C. Track bulletins
• D. Track warrants

Answer: (A)

Movement on the railroad is authorized by official permissions, and the four items listed are examples of those permissions. In Track Warrant Control, crews operate only when they have a proper authority from the controlling entity. A track warrant gives explicit permission to occupy a defined block of track. A track bulletin conveys track conditions or restrictions that crews must follow, effectively authorizing movement under those conditions. Track and time authorizes occupancy for a specific time window, while a track permit grants permission for a particular operation on defined track. Because all of these are forms of authority that authorize train movement, they belong under the category of Authorities. Speed restrictions, by contrast, describe a limit on speed rather than the broader permission to occupy and move on track.