What is the main purpose of the Restricted Operator Certificate - Aeronautical (ROC-A)?

The main purpose of the Restricted Operator Certificate - Aeronautical (ROC-A) is to authorize individuals to operate radiotelephone equipment on aircraft. This certification is specifically designed for pilots and other aviation personnel who need to communicate using aeronautical radio systems.

The ROC-A ensures that these individuals possess the necessary skills and knowledge to use radio equipment effectively and comply with aviation regulations concerning communication procedures. This is crucial for maintaining safety and coordination during flight operations, where clear and reliable communication between the aircraft and air traffic control is essential.

While the other options refer to operating equipment in different contexts or providing training, none specifically align with the focused application of the ROC-A, which is centered around aviation communications.