77ae0e81____Code_of_Federal_Regulations__ducting_an_operation_requiring
(ii) Age 40 or older 24th month after the month of the date of examination shown on the medical certificate.
a recreational pilot certificate, a private pilot certificate, a flight instructor certificate (when acting as pilot in command or a required pilot flight crewmember in operations other than glider or balloon), a student pilot certificate, or a sport pilot certificate (when not using a U.S. driver's license as medical qualification)
eCFR — Code of Federal Regulations