Which part of the CFR governs the issuance of Airworthiness Certificates?

The issuance of Airworthiness Certificates is primarily governed by 14 CFR part 21. This part contains regulations regarding the certification procedures for aircraft and the requirements necessary to ensure they meet the appropriate airworthiness standards. It outlines the steps for obtaining various types of certificates, including type certificates, production certificates, and airworthiness certificates, which are essential for the operation of civil aviation.

Understanding the content of part 21 is crucial for anyone involved in the certification process, as it lays the foundation for assuring that aircraft are safe for operation in the national airspace. This part ensures that all technical and procedural requirements are met before an airworthiness certificate can be granted, maintaining the safety and reliability of aircraft.

While other parts, such as part 23 and part 25, relate to specific types of aircraft designs and performance parameters, and part 39 outlines directives for airworthiness, they do not directly govern the issuance process of airworthiness certificates.