The aircraft is in a position to make a normal descent
to touchdown within the touchdown zone.
The flight visibility is not less than required by the
approach.
At least one of the following visual references is
distinctly visible and identifiable to the pilot.
The ALS except that the pilot may not descend below
100 feet above the TDZE using the approach lights as a reference unless the red
terminating bars or the red side row bars are also distinctly visible and
identifiable.
The threshold, threshold markings, or threshold
lights.
The runway end identifier lights REIL
The visual approach slope indicator VASI
The touchdown zone, touchdown zone markings, or
touchdown zone lights.
The runway, runway markings, or runway lights.