wrote in
ups.com:

Landing. Aircraft while on final approach to land or while
landing, have the right-of-way over other aircraft in flight or
operating on the surface, except that they shall not take
advantage of this rule to force and aircraft off the runway
surface which has already landed...

.... and I believe that the AIM defines "Final Approach" as:
A flight path in the direction of landing along the extended
runway centerline from the base leg to the runway.

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