When can the pilot descend below 5,300 feet when cleared to the AJCIZ waypoint?

Descending below 5,300 feet when cleared to the AJCIZ waypoint is tied to the specific distance from that waypoint, which is typically governed by procedures to ensure safe altitude management and traffic separation. The correct answer indicates that a pilot may descend when they are 15 NM from the waypoint, aligning with standard operating procedures that provide safe altitude thresholds before entering more congested airspace or during the approach phase.

This procedure is crucial for maintaining situational awareness and ensuring that the aircraft remains in a safe altitude profile while transitioning to the arrival and approach phases where navigational complexities increase and other air traffic may be present. Therefore, knowing the proper distances for altitude changes is essential for safe flight operations.