If a pilot has a CPL (A) with an IR (A), how long is a pass in the ATPL (A) knowledge examination valid?

The validity of a pass in the ATPL (A) knowledge examination is typically set at 10 years. This timeframe allows pilots sufficient time to meet the necessary requirements for obtaining an ATPL (Airline Transport Pilot License) while acknowledging that aviation knowledge can evolve. The rationale for this duration reflects the balance between the need for recency in training and the practical aspects of a pilot’s career trajectory.

By incorporating this 10-year validity period, regulatory bodies aim to ensure that pilots have a solid foundational knowledge to build upon as they advance in their careers without the pressure of continuously having to retake the examination, as long as they keep their qualifications active and remain compliant with other licensing requirements.