A 3rd Class Medical Certificate lasts 60 calendar months if you were under 40 on the day of the exam, and 24 calendar months if you were 40 or older. So how long does a 3rd Class Medical Certificate last in practice? Five years or two years, depending on your age at the exam, with a small bonus at the end because the FAA counts by calendar months rather than the exact exam date.1eCFR. 14 CFR 61.23 – Medical Certificates: Requirement and Duration
Those two durations come from the duration table in 14 CFR 61.23(d) and cover student, recreational, and private pilots. Sport pilots fall under the same rule but have a separate option: a valid U.S. driver’s license can substitute for a medical certificate when the aircraft meets sport pilot performance limits.1eCFR. 14 CFR 61.23 – Medical Certificates: Requirement and Duration
How the Calendar Month Rule Extends Your Validity
Many pilots assume the certificate expires on the anniversary of the exam. It doesn’t. The FAA counts full calendar months, and your certificate remains valid through the last day of the final month in the window.
An example. You are 35 and take your exam on March 10, 2026. The 60-month clock starts with March 2026, so your certificate stays valid through March 31, 2031, not March 10, 2031.1eCFR. 14 CFR 61.23 – Medical Certificates: Requirement and Duration An exam on March 1 and an exam on March 28 produce a certificate that expires on the same date. That is why pilots who understand the rule tend to book appointments in the first week of a month.
Age at the time of the exam is what fixes the duration. If you take the exam at 39 and turn 40 a week later, you still get the full 60 months. If you wait and take the exam at 40, you get 24.
When the Printed Expiration Date Isn’t the Real One
The date on the certificate is a ceiling, not a guarantee. Federal regulations prohibit you from acting as pilot in command if you know or have reason to know of any medical condition that would prevent you from meeting 3rd Class Medical standards, or if you are taking medication or receiving treatment that would.2eCFR. 14 CFR 61.53 – Prohibition on Operations During Medical Deficiency A current certificate does not clear you to fly if your health has changed since the exam.
The FAA can also cut the validity short administratively. If the agency requests medical information or records to determine whether you still meet standards, you have to provide them. Refusing or failing to hand over requested records can result in the FAA suspending, modifying, or revoking your certificate, and the suspension stays in place until you provide the information and the FAA confirms you still qualify.3eCFR. 14 CFR Part 67 – Medical Standards and Certification
How Long Special Issuance Certificates and SODAs Last
If you fly under a Special Issuance Authorization for an initially disqualifying condition, the standard 60- or 24-month duration can be shortened. The FAA can withdraw a Special Issuance Authorization at any time if your condition worsens, if you don’t follow functional or operational limitations, or if you don’t provide medical information the Federal Air Surgeon requests.3eCFR. 14 CFR Part 67 – Medical Standards and Certification
A Statement of Demonstrated Ability (SODA) works differently. A SODA is a permanent authorization that does not expire, granted for static or nonprogressive conditions such as stable vision loss in one eye or a healed limb condition. Your medical certificate itself still runs on the standard 60- or 24-month cycle, but the SODA lets a designated AME reissue it at each renewal as long as the underlying condition hasn’t worsened.4eCFR. 14 CFR Part 67 Subpart E – Certification Procedures
BasicMed Runs on a Different Clock
Since 2017, many private pilots have been able to fly under BasicMed rules instead of holding a traditional 3rd Class Medical. BasicMed replaces the AME exam with a visit to any state-licensed physician and an online medical education course, and it uses its own renewal cycle rather than the 60/24-month structure.
You need a comprehensive medical examination from a state-licensed physician every 48 months and must complete an FAA-approved online medical education course every 24 months.5eCFR. 14 CFR Part 68 – Requirements for Operating Certain Small Aircraft Without a Medical Certificate The physician follows an FAA-developed checklist rather than applying the formal standards from 14 CFR Part 67. The same ground-yourself obligation applies if you develop a condition that affects your ability to fly safely.
BasicMed carries operating limits that the traditional 3rd Class Medical does not. You are restricted to aircraft with a maximum takeoff weight of 12,500 pounds or less and no more than six passengers (seven total occupants including you).6Federal Register. Regulatory Updates to BasicMed Flights must stay at or below 18,000 feet MSL and 250 knots indicated airspeed, and you can only fly within the United States.7Federal Aviation Administration. BasicMed The weight and passenger limits went up from 6,000 pounds and five passengers in November 2024, so older references online may still show the smaller numbers.
To qualify for BasicMed you must hold a valid U.S. driver’s license and have held an FAA medical certificate at some point after July 14, 2006.7Federal Aviation Administration. BasicMed The prior medical does not have to be current, but it has to have existed. Pilots who have never held any FAA medical certificate need to obtain one before switching to BasicMed. If you have certain mental health, neurological, or cardiovascular conditions, you must have completed the Special Issuance process for those conditions before using BasicMed.5eCFR. 14 CFR Part 68 – Requirements for Operating Certain Small Aircraft Without a Medical Certificate
Plan the Renewal Around the Calendar
Because the expiration falls on the last day of a month, the practical planning question is which month contains your deadline. Book your new exam any time before that final day and the new validity period starts fresh from the month of the new exam, following the same age-based rule. If you turn 40 during your current five-year window, the shorter 24-month cycle only kicks in at your next exam, not on your birthday.