What document is need to prove compliance with medical and operational regulations to the FAA?

The Medical Certificate is essential for proving compliance with medical regulations set forth by the FAA. This document demonstrates that a pilot meets the necessary health standards required to operate an aircraft safely. Different classes of medical certificates correspond to varying levels of complexity and responsibilities in piloting, ensuring that pilot health is evaluated appropriately according to the tasks they will undertake.

While the airworthiness certificate confirms that the aircraft meets safety and operational standards, and the pilot's license indicates that the pilot is trained and qualified to fly, neither of these documents specifically addresses the medical fitness of the pilot. Similarly, the registration certificate is related to the ownership and identification of the aircraft rather than the regulatory compliance of the pilot's health. Therefore, the Medical Certificate is the direct evidence of a pilot's compliance with medical regulations.