Entro 60 mesi per i soggetti di età inferiore a 40 anni
24 mesi da 40 anni a 49, ogni 12 mesi da 50 anni in poi
Giustissimo
Infatti ecco qua
JAR–FCL 3.105
Period of validity of medical certificates
(See Appendix 1 to JAR– FCL 3.105)
(a) Period of validity. A medical certificate shall be valid from the date of the initial general medical examination and for:
(1) Class 1 medical certificates, 12 months except, that for [ ][applicants] who
[(i) are engaged in single-pilot commercial air transport operations carrying passengers and have passed their 40th birthday, or
(ii) have passed their 60th birthday]
[ ][the period of validity shall be reduced to 6 months.] This increase in frequency after the 40th birthday does not apply to flight engineers.
(2) Class 2 medical certificates, 60 months until age [ ][40], then 24 months until age 50 and 12 months thereafter.
(3) The expiry date of the medical certificate is calculated on the basis of the information contained in (1) and (2). The validity period of a medical certificate (including any associated extended examination or special investigation) shall be determined by the age at which the medical examination of the applicant takes place.
(4) Despite (2) above, a medical certificate issued prior to the holder’s [ ][40th ] birthday will not be valid for Class 2 privileges after his [ ][42nd ] birthday.
[(5) The period of validity of the medical certificate may be reduced when clinically indicated.]
(b) Revalidation.
[(1)] If the medical revalidation is taken up to 45 days prior to the expiry date calculated in accordance with (a), the [ ][expiry] of the new certificate [ ][is calculated by adding] the period stated in (a)(1) or (2)[ ][, as applicable, to the expiry date of the previous medical certificate.]
[(2) A medical certificate revalidated prior to its expiry becomes invalid once a new certificate has been issued.]
http://www.austrocontrol.at/en/Images/JAR-FCL 3.Amdt 5.Section 1_tcm586-65082.pdf
Grazie!