Can tracks that are "on hold" be fouled or assigned local control?

When tracks are designated as "on hold," it means that they are temporarily out of service or not currently in use. However, they can indeed be fouled or assigned local control under specific circumstances. It is essential to maintain communication with the dispatcher and follow established protocols to ensure safety when dealing with tracks on hold.

Fouling a track, which means placing equipment or personnel on the track, or assigning local control requires careful consideration of factors such as the current operational status, the reason for the hold, and any safety measures that need to be implemented. If the dispatcher determines that certain conditions are met, local control can be granted, enabling an authorized person to manage the situation appropriately while ensuring safety protocols are followed.

Thus, the correct choice highlights that while there are restrictions regarding tracks on hold, there are scenarios where they can be used if proper protocols and conditions are followed.