The amount of main track authority issued by a track warrant is known as ___________________________.

• A. Designated limits
• B. Maximum limits
• C. Primary limits
• D. Authorized extent

Answer: (A)

In Track Warrant Control, the authority given to a train is defined by a specific portion of main track, called the limits. The exact amount of main track authority a warrant covers is referred to as the designated limits. The dispatcher sets these limits (often by mileposts or block numbers), and the train may operate only within them. Other terms like maximum limits, primary limits, or authorized extent aren’t the standard terminology used to describe this defined block of authority.