At minimum, how many minutes before an aircraft is expected to enter a facility's area must flight progress data be passed?

The correct answer is based on the protocols established for effective air traffic control communication and safety procedures. Flight progress data must be passed at least 15 minutes before an aircraft is expected to enter a facility's area to ensure that the receiving controller has sufficient time to integrate the incoming information into their workload. This safety margin allows for the necessary coordination, planning, and adjustments to be made for the safe handling of the aircraft. Adequate time is crucial for controllers to assess the situation, factor in current traffic, and ensure seamless handoffs or adjustments to flight plans as needed. This standard aligns with the broader objective of maintaining safe separation and efficient movement within controlled airspace.