Who may pack the main parachute of a dual parachute pack intended for jumping?

The correct answer indicates that both an appropriately rated parachute rigger and the person using the parachute may pack the main parachute of a dual parachute pack intended for jumping. This reflects the understanding that while professional standards and safety protocols require the involvement of certificated riggers for the maintenance and packing of parachutes, in certain circumstances, the user can also be qualified to pack their parachute, assuming they have received adequate training.

This approach allows flexibility in parachute operations while still emphasizing the importance of proper packing techniques to ensure the safety and functionality of the parachute system. The dual-packing option helps to ensure that in scenarios where immediate access to a certified rigger is not feasible, an informed user can still prepare their equipment correctly for safe jumps, thereby supporting the dual objectives of safety and accessibility in skydiving practices.

In contrast, the other options present limitations that do not align with these practices or training provisions.