Neurologic

To qualify for a third-class medical certificate, you cannot have a medical history or diagnosis of epilepsy, unexplained loss of consciousness, or unexplained temporary loss of control over nervous system functions (like involuntary movements or paralysis). The key word is "unexplained"—if doctors have identified and resolved the cause, it may not be disqualifying.

Additionally, you cannot have any other neurological condition that would prevent you from safely exercising pilot privileges, either now or during the certificate's validity period. The Federal Air Surgeon makes this determination based on your specific case history and qualified medical opinions.

In practice, this means any seizure disorder, fainting spell, or neurological issue requires thorough medical documentation explaining the cause and demonstrating it won't affect flight safety. Even resolved conditions need proper documentation for your Aviation Medical Examiner to evaluate.

*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation and consult a CFI.*