What does the term "air operator certificate" (AOC) refer to?

The term "air operator certificate" (AOC) specifically refers to a certificate that permits an operator to conduct commercial air transport operations. This certification is crucial because it ensures that the operator complies with all necessary regulations and safety standards set by the relevant aviation authority. The AOC verifies that the operator has the required systems in place to conduct operations safely, including maintenance, operations, and management processes.

In the context of aviation regulation, the AOC is essential for any entity intending to offer commercial services, such as transporting passengers or cargo for hire. It serves as a confirmation that the airline or air service provider meets the prescribed criteria regarding safety and operational integrity.

Other options, while important in their own right, do not align with the specific definition of an AOC. For example, a certificate for aircraft maintenance procedures relates to the maintenance aspect but does not cover the broader operational authority of an AOC. A license for training flight crew focuses on the personnel aspect rather than the operational permission, and a document needed for private flying activities typically refers to regulations governing non-commercial flights, which are outside the purview of what an AOC represents.