Who issues the type certificate of an aircraft?

The type certificate of an aircraft is issued by the national Civil Aviation Authority (CAA) because it is the regulatory body responsible for ensuring that aircraft meet safety and performance standards. The CAA conducts thorough evaluations of the aircraft design, manufacturing processes, and compliance with aviation regulations before granting certification. This process ensures that all aircraft operating within a country's airspace adhere to the necessary safety and operational standards, allowing for the safe operation of aircraft.

Organizations like JAR-21, JAR-145, and JAR-25 are involved in different aspects of aircraft certification and maintenance. JAR-21 pertains to the certification of aircraft and components, JAR-145 deals with the maintenance organizations, and JAR-25 focuses on the requirements for transport category aircraft. However, the ultimate authority and responsibility for issuing the type certificate rests with the national Civil Aviation Authority, as they enforce compliance with national and international regulations.