What must a bureau-approved flight following program specify?

A bureau-approved flight following program must specify actions for an overdue or missing aircraft because this is critical for ensuring safety in flight operations. Such a program establishes protocols to be followed when an aircraft does not arrive as scheduled or fails to maintain communication. Having clear actions outlined helps to coordinate search and rescue efforts efficiently, ensures that all personnel involved are aware of their responsibilities, and reduces response time in potentially life-threatening situations. This aspect of the program is essential for maintaining the safety and integrity of flight operations, as timely intervention can dramatically affect outcomes in emergencies.

While pre-flight briefing procedures, fuel requirements, and flight duration limits are also important facets of aviation safety, they do not directly address the protocols necessary when an aircraft is reported overdue or missing, which is a critical component of flight following systems aimed at ensuring the safety of all aircraft in operation.