When voiding a QT, what must be done in relation to the transaction?

When voiding a QT (Quick Ticket), it is essential to perform the action on the same train where the original transaction took place. This maintains the integrity and accuracy of the ticketing system, as it allows for immediate reconciliation of the transaction within the operational context where it was sold. Handling the void on the same train ensures that any issues related to the transaction can be addressed at the point of sale and minimizes complications that could arise from discrepancies over location or timing.

The requirement to perform the void on the same train helps in maintaining clear records of ticketing activities and makes it easier for transit personnel to manage and verify ticketing information effectively. This practice also allows passengers to resolve any issues with their tickets promptly while still on the train, contributing to a smoother passenger experience.