# first-class medical certificate — How long medical certificates last for pilots, commercial drivers and merchant mariners — by class, age and service type

For first-class medical certificate, occupation / regulator is pilot (FAA); age / service condition is Under age 40; operation / activity covered is an airline transport pilot certificate for pilot-in-command privileges, or for second-in-command privileges in a flag or supplemental operation in part 121 requiring three or more pilots; valid for is 12th month after the month of the date of examination shown on the medical certificate; citation is 14 CFR 61.23, recorded from its source on 2026-08-11.

- **Occupation / regulator:** pilot (FAA) _(our reading, not quoted from the source)_
- **Certificate and class:** first-class medical certificate _(verified: appears in the quote below)_
- **Age / service condition:** Under age 40 _(verified: appears in the quote below)_
- **Operation / activity covered:** an airline transport pilot certificate for pilot-in-command privileges, or for second-in-command privileges in a flag or supplemental operation in part 121 requiring three or more pilots _(verified: appears in the quote below)_
- **Valid for:** 12th month after the month of the date of examination shown on the medical certificate _(verified: appears in the quote below)_
- **Citation:** 14 CFR 61.23 _(verified: appears in the quote below)_

## What the source says

> (1) A first-class medical certificate | (i) Under age 40 | an airline transport pilot certificate for pilot-in-command privileges, or for second-in-command privileges in a flag or supplemental operation in part 121 requiring three or more pilots | 12th month after the month of the date of examination shown on the medical certificate.

## Source

- https://www.ecfr.gov/current/title-14/chapter-I/subchapter-D/part-61/subpart-A/section-61.23

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [How long medical certificates last for pilots, commercial drivers and merchant mariners — by class, age and service type](https://referencesource.org/medical-certificate-validity-by-occupation/).