When a track authority is issued for movement in Non-CTC territory that begins or ends at a CTC control point, what will be shown on the track authority at the CTC control point?

• A. SW-N
• B. SW-Y
• C. A notation indicating the point
• D. Not shown on the authority

Answer: (A)

The idea being tested is how track authorities mark the boundary where non-CTC control meets a CTC control point. When a movement in non-CTC territory begins or ends at a CTC control point, the track authority will carry a specific boundary notation at that point. The standard marking is SW-N, which signals that this boundary involves non-CTC control and identifies the switch/working boundary context for the authority. This helps both the crew and the dispatcher recognize how the movement is governed at the boundary and ensures the correct rules apply as the authority crosses into or out of CTC territory. Other options don’t reflect how the boundary is identified on the authority, so they aren’t used in this situation.