Pilot Medical Classes Explained Which One Do You Need

Why Your Medical Class Matters Before Your First Flight

Pilot medical certificates have gotten complicated with all the conflicting information flying around online. Three classes, cascading validity windows, BasicMed sitting in the corner that half the aviation community doesn’t know exists — it adds up fast. As someone who learned the hard way that flying on the wrong class isn’t a gentle reminder from the FAA but an enforcement action, I learned everything there is to know about this subject. Today, I will share it all with you.

Flying with an expired or mismatched medical certificate is treated the same way as flying without a license altogether. The FAA does not grade on a curve here. So let’s get specific about what each class actually covers — and, more importantly, which one fits where you are right now.

First Class Medical — What It Covers and Who Needs It

But what is a First Class medical, exactly? In essence, it’s the highest-tier certificate the FAA issues to pilots. But it’s much more than that — it’s the gatekeeper between you and an airline captain seat.

Want to fly for United, Delta, any regional carrier under Part 121 as captain? First Class is the only answer. ATP certificate holders exercising airline transport privileges must hold a valid one. No exceptions, no workarounds.

Validity is where things get strange. Under 40, your First Class is good for 12 months. Hit that 40th birthday and the same certificate now only functions as First Class for six months. After that window closes, it doesn’t vanish — it automatically downgrades. Continues as a Second Class for the rest of the 12-month period. Then kicks down again to Third Class privileges through the 60-month or 24-month window depending on your age. That cascade is real. Most student pilots I’ve talked to at Saturday morning fly-ins have absolutely no idea it works that way. Don’t make my mistake — learn it now instead of mid-career.

The standards that trip people up at the First Class exam are mostly vision and cardiovascular. Distant visual acuity of 20/20 or better in each eye — corrective lenses are fine. Near vision of 20/40 or better. An EKG is required starting at age 35, then every year after that. Blood pressure must stay under 155/95. History of cardiac issues, certain medications, specific mental health diagnoses? Expect additional documentation before that certificate gets issued.

First, you should get a First Class exam now — at least if there’s any chance an ATP is somewhere in your future. Young and healthy is the easiest this exam will ever be. I’m apparently someone who waited until 36, discovered a borderline BP reading, and spent three extra months in FAA paperwork purgatory. The AOPA MedXPress system helped, but still. Get there early.

Second Class Medical — The Commercial Pilot Standard

Probably should have opened with this section, honestly. It’s the one most misunderstood by pilots sitting right in the middle of their training pipeline.

Second Class is required to exercise commercial pilot privileges — flying passengers or cargo for compensation under Part 61 or as PIC under Part 135. CFIs flying as PIC in Part 135 operations fall under this too. Giving dual instruction as a private CFI under Part 61? A Third Class technically covers you. The moment you’re flying for hire as PIC in a 135 operation, though, Second Class is your floor — no exceptions.

Validity is 12 months flat, regardless of age. Simpler than First Class. Vision standards sit close to First Class but aren’t identical — 20/20 distant vision with correction still required, but the intermediate vision standard at arm’s length is slightly relaxed. Hearing requires passing a conversational voice test at six feet with your back to the examiner. Sounds straightforward until you’re standing in an exam room with the HVAC running at full volume. That was my experience at an AME in Scottsdale — nearly failed on ambient noise alone.

Second Class might be the best option for the pilot actively chasing a commercial certificate, as commercial flying requires current and appropriate medical credentials. That is because a Third Class won’t cut it the moment you’re flying for hire, and discovering that gap the week before a checkride is genuinely awful. If commercial work is your goal in the next two to three years, get Second Class now. Renewing annually becomes routine fast.

Third Class Medical — What Private and Student Pilots Actually Need

This is where most readers live. And the rules have shifted enough in the last decade that a lot of pilots are still operating on outdated assumptions — some of them instructors who should know better.

Third Class validity breaks down simply. Under 40 years old: good for 60 months. Five full years. Forty and over: drops to 24 months. Those windows apply to private certificate holders, recreational pilots, and student pilots exercising solo privileges.

Student pilots need a Third Class medical before solo flight. The certificate must be in hand before that first solo — not scheduled, not pending. In hand. The exam typically runs between $150 and $200 at most Aviation Medical Examiners, though I’ve seen prices as high as $275 in major metro areas. Call ahead, ask the specific cost, and book at least two to three weeks out — AME availability varies more than most people expect.

So, without further ado, let’s talk BasicMed — because stunned doesn’t cover my reaction when I discovered how many pilots in my local flying club had never heard of it. I started mentioning it at every hangar fly-in after that.

But what is BasicMed? In essence, it’s a legitimate FAA-approved alternative to the traditional Third Class medical established under 14 CFR Part 68. But it’s much more than a simple substitute — it fundamentally changes the renewal process. Get a physical from any state-licensed physician. Complete the online AOPA medical education course — runs about 30 minutes, costs nothing extra if you’re already an AOPA member. Carry both the completed checklist and the physician documentation when you fly. That’s the process.

BasicMed allows: aircraft up to 6,000 pounds maximum certificated takeoff weight, six seats or fewer, at or below 18,000 feet MSL, under 250 knots, within the United States. What it doesn’t cover: compensation or hire, international flying, sport pilot operations in lieu of medical. That’s what makes BasicMed endearing to us weekend flyers — it fits the Cessna 172 crowd almost perfectly. It is not a loophole. It’s a legitimate path.

Which Medical Class Should You Get Right Now

Here is the decision tree, stripped of legalese.

• If you have any intention of flying commercially — ever: Get a First Class medical now, before a health issue makes the standards harder to meet. You can always fly on a downgraded certificate. You cannot undo a disqualifying condition discovered at 35.
• If you are actively pursuing a commercial certificate or Part 135 work: Second Class is your floor. Get it. Twelve-month validity means annual renewals regardless — budget roughly $150 to $200 per visit and build it into your flying expenses.
• If you are a private pilot flying VFR weekends in a Cessna 172 with zero commercial plans: Third Class is fine. BasicMed is also fine if you qualify — and you should look into it before your next renewal cycle.
• If you are a student pilot: You need a Third Class before solo. Do not schedule that lesson before the certificate is physically in your hands.

The most common mistake I see — and I’ve seen it play out more than once at my home field — is a pilot who grabs a Third Class intending to upgrade later, then walks into a First Class exam at 38 with a blood pressure issue they didn’t know about and a commercial checkride on the calendar for next month. I’m apparently the type who nearly made that exact error at 36 and the experience was stressful enough that I mention it to every student I meet. Get the highest class your career might ever require. Get it early. The exam is the most straightforward it will ever be right now.

To find a certified Aviation Medical Examiner near you, use the AME locator tool on the FAA’s official website at faa.gov.