What differentiates a "Pilot in Command" (PIC) from a "Co-pilot"?

The distinction of a "Pilot in Command" (PIC) lies in the full responsibility and authority they hold for the aircraft and the safety of its operation during a flight. The role of the PIC is defined by regulations, establishing them as the final decision-maker who oversees all aspects of the flight, from pre-flight planning through to landing. This encompasses not only the operational control of the aircraft but also key factors such as adherence to regulations, managing emergencies, and ensuring the safety and well-being of all on board.

In contrast, a co-pilot, while skilled and capable, assists the PIC and shares flying and navigation duties. However, they do not have the ultimate responsibility associated with the command of the aircraft. This clear delineation is crucial for effective management of flight operations, as it ensures accountability and clarity in decision-making processes. The co-pilot supports the PIC but does not bear the same level of responsibility for the entirety of the flight's safety and operation as the PIC does.