How long is the validity of third-class privileges for a pilot under 40 after first-class privileges?

The validity of third-class medical privileges for a pilot under the age of 40 after obtaining first-class privileges is 60 months, or 5 years. This duration reflects the regulatory guidelines set by the Federal Aviation Administration (FAA) regarding medical certificates.

When a pilot holds a first-class medical certificate, it generally conveys the highest level of medical standards required for pilots who operate as airline transport pilots. For those who are under 40, after initially obtaining this certification, the medical privileges grant them the ability to fly under third-class requirements for a longer duration compared to older pilots.

This information is vital for pilots to understand their medical status and planning for future renewals or medical examinations, ensuring that they maintain compliance with FAA regulations and can continue to operate aircraft safely.