What is the expiration period for a second class medical certificate for someone who is 39 years old?

A second class medical certificate is essential for pilots who operate as commercial pilots and has a specific validity period based on the age of the certificate holder. For individuals under the age of 40, the expiration period is 12 calendar months from the date of examination. This means that if a 39-year-old receives a second class medical certificate, it will remain valid for 12 months, allowing them to continue flying under this classification for that duration before needing to undergo a new medical evaluation.

This aligns with FAA regulations, which categorize medical certificates by class and age and define the renewal periods accordingly. For example, individuals aged 40 and older would have a shorter expiration period for their second class medical certificates, but since the individual in question is 39 years old, the 12-month validity is applicable in this case.