What is the expiration timeframe for a second-class medical certificate for commercial privileges?

A second-class medical certificate is essential for pilots who wish to exercise commercial flight privileges. The expiration timeframe for this type of certificate is 12 months. After this period, pilots are required to undergo a new medical evaluation to ensure that they meet the necessary health standards to operate aircraft commercially.

This requirement is in place to maintain safety standards in aviation, ensuring that all pilots are both physically and mentally fit to handle the demands of flying for compensation. Therefore, the 12-month validity is crucial for sustaining the safety and integrity of commercial aviation operations.