The renewal interval for a Class 1 medical certificate depends on which aviation authority your certificate is issued by for example DGCA in India or the FAA in the United States and often by the pilot’s age.
A DGCA Class 1 medical certificate is valid for one year if the pilot is under the age of 40.
For pilots aged 40 and over the validity reduces to six months.
Renewals can generally be booked through the eGCA portal and DGCA approved medical examiners or specific Indian Air Force medical centers can conduct the medical examination.
If a medical certificate has expired for more than two years a re initial medical or special NOC from DGCA may be required.
A First Class medical certificate under FAA regulations is valid for 12 months for pilots under age 40 and 6 months for those aged 40 or older.
After the first class medical privilege period expires (i.e.after 12 or 6 months) the certificate downgrades automatically to second or third class privileges depending on the elapsed time and pilot age.
Renewal means going through a fresh medical examination with an Aviation Medical Examiner (AME).
Always check your local aviation authority rules because validity periods and renewal mechanisms may vary slightly from country to country or with different pilot age brackets.
If your medical has lapsed or you’re over an upper age threshold additional re initial exams or documentation may be required.
It’s best to schedule your renewal well before expiry some authorities allow you to renew up to a month early (or even more under certain conditions) but requirements vary.
Finally, maintaining good health staying current with any required tests (like ECGs or audiometry) and keeping your medical records up to date will help streamline the renewal process.