When should runway exiting or taxi instructions not be issued to an aircraft?

Runway exiting or taxi instructions should not be issued to an aircraft immediately after touchdown because the aircraft is still in critical phases of landing during this time. When a plane has just touched down, the pilots are primarily focused on slowing the aircraft and ensuring a safe landing. Issuing taxi instructions at this moment could divert their attention from landing to navigating the runway, which may compromise safety.

At this stage, the pilot is also monitoring the aircraft's speed, assessing braking effectiveness, and determining the appropriate actions based on runway conditions. It is only after the aircraft has firmly landed and is taxiing away from the runway that taxi instructions become relevant and safe to provide. This ensures that the pilots can execute their responsibilities without distraction or confusion, thereby upholding the safety protocols of air traffic control operations.