Trains must not make unscheduled stops to receive or discharge passengers or employees without:

• A. Authorization from the Dispatcher
• B. A written permit from the station master
• C. A safety briefing
• D. Completion of maintenance check

Answer: (A)

Unscheduled stops to receive or discharge passengers or employees require coordination to keep train movements safe and on track. That coordination comes from the dispatcher, who can authorize the stop, ensure the correct block is protected, and notify other trains and crews as needed. Without dispatcher authorization, stopping could create conflicts with signals, track occupancy, or other trains.

The other options don’t fit because they don’t provide the ongoing coordination and protection needed for a train to stop in an unscheduled location. A permit from the station master isn’t how movement authorization is issued, safety briefings aren’t approvals for stopping, and a maintenance check isn’t related to authorizing passenger or employee transfers.