When are medical exams due?

• A. Every 3 months
• B. Every 6 months to the day
• C. Every 12 months
• D. Every 18 months

Answer: (B)

Medical exams for flight crew operating under Part 135 are kept current on a six-month cycle, counted to the exact day. The “to the day” aspect means six full calendar months from the date of your last exam, on the same day of the month. This cadence is designed to ensure ongoing medical fitness for commercial operations, where health status needs regular monitoring. For example, if your last exam was on the 15th, you’d need a new exam by the 15th six months later. If you don’t have a current medical certificate by that due date, you wouldn’t be permitted to perform duties requiring one.