Ace the 2025 Australia CASA Instrument Proficiency Exam – Soar High and Navigate Your Success!

For IFR flights that are not Regular Public Transport (RPT), it is indeed true that pilots must provide the number of Persons On Board (POB) when making the initial request for taxi clearance. This requirement is in place primarily for safety and operational considerations.

When pilots communicate with air traffic control (ATC), providing POB helps ATC manage air traffic more effectively, especially in emergency situations. It allows ATC to understand the full scope of an aircraft's operational profile, which can be critical in the event of an incident. Including POB in the initial request facilitates smoother communications and ensures that all pertinent information is at ATC's disposal right from the start of the flight operation.

This requirement reflects a broader emphasis on safety and information sharing in the aviation environment, ensuring that ATC has a complete picture of the aircraft's situation. Other answer choices reflect misunderstandings about ATC communication protocols and the importance of sharing POB information prior to taxiing.