| Meaning: |
One of the following types of runways intended for the operation of aircraft using instrument approach procedures:
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Nonprecision Approach Runway- An instrument runway served by visual aids and a nonvisual aid providing at least directional guidance adequate for a straight-in approach.
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Precision Approach Runway, Category I- An instrument runway served by ILS and visual aids intended for operations down to 60 m (200 feet) decision height and down to an RVR of the order of 800 m.
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Precision Approach Runway, Category II- An instrument runway served by ILS and visual aids intended for operations down to 30 m (100 feet) decision height and down to an RVR of the order of 400 m.
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Precision Approach Runway, Category III- An instrument runway served by ILS to and along the surface of the runway and:
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Intended for operations down to an RVR of the order of 200 m (no decision height being applicable) using visual aids during the final phase of landing;
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Intended for operations down to an RVR of the order of 50 m (no decision height being applicable) using visual aids for taxiing;
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Intended for operations without reliance on visual reference for landing or taxiing.
Note 1: See Annex 10 Volume I, Part I, Chapter 3, for related ILS specifications.
Note 2: Visual aids need not necessarily be matched to the scale of nonvisual aids provided. The criterion for the selection of visual aids is the conditions in which operations are intended to be conducted.
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