When can NRP be removed from the remarks section of a flight plan?

The correct choice indicates that the NRP (No Radio Procedure) can be removed from the remarks section of a flight plan when the pilot requests a change in route. This is correct because the presence of an NRP typically indicates that there may be special considerations due to communication difficulties, which could include specific routing requirements.

When a pilot requests a change in route, it suggests that they have actively engaged with air traffic control (ATC) and are seeking to establish or reaffirm communication. This interaction allows ATC to update the flight plan accordingly, potentially nullifying the necessity for the NRP. In short, the pilot's initiative in modifying the route inherently suggests that communication capabilities have improved or been clarified, warranting the removal of the NRP notice.

In contrast, simply changing a destination airport, forecasting severe weather, or making altitude adjustments may not necessarily restore effective communication with the pilot, and thus, would not automatically justify the removal of the NRP from the flight plan remarks. These situations may still require ongoing considerations for communication, where the NRP might still apply due to the operational challenges inherent to those scenarios.