| Meaning: |
An approach and landing using instruments for navigation guidance based on an instrument approach procedure. There are two methods for executing instrument approach operations:
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A two-dimensional (2D) instrument approach operation, using lateral navigation guidance only; and
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A three-dimensional (3D) instrument approach operation, using both lateral and vertical navigation guidance.
Note: Lateral and vertical navigation guidance refers to the guidance provided either by:
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a ground-based radio navigation aid; or
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computer-generated navigation data from ground-based, space-based, self-contained navigation aids or a combination of these.
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