Regulatory body and structure India DGCA regulates civil aviation medicals. Class-2 is used for initial civil aircrew entry; Class-1/SEP for aeromedical certification as needed. Historically, a separate Class-2 screening network (AF/IAM-based) supported initial entry. Globally: Civil aviation medicals are typically governed by a national aviation authority (e.g., FAA in the USA, CAA in the UK, CASA in Australia) with clear, standardized categories (often Class 1 for pilots and high-risk aviation roles; Class 2 or analogous for student/initial eligibility). ICAO provides global medical standards but implementation is national. History of medical exam Before 1980, pilot used to enroll in flying clubs, finished flying training and used to apply for CPL or PPL license. Then the Air HQ took a policy, that all initial civil Aircrew for commercial flying were to be examined at AFCME (IAM followed a year or two later). The ICAO medical directives were at their infancy ... At that time, it was...