Track restriction issuance format

• A. (Train ID) must maintain (speed) between (location) and (location).
• B. (Train ID) do not exceed (speed) between (location) and (location).
• C. (Train ID) do not exceed (speed) between (location) and (location) and (location).
• D. (Train ID) may exceed (speed) between (location) and (location)

Answer: (B)

Track restrictions set a speed ceiling for a defined block of track. The instruction communicates that within the specified start and end locations, the train must not exceed the stated speed. This phrasing provides a clear upper limit that crews can follow, while allowing them to travel slower if needed for safety or conditions. The other forms either imply maintaining a exact speed, cover an improper or broader set of locations, or permit exceeding the limit, which would defeat the purpose of the restriction.