Section (b) if the elevation of an obstacle or l - Manual of Standards Part 173—Standards Applicable to Instrument Flight Procedure Design - (b) if the elevation of an obstacle or low terrain, including small structures on the obstacle or terrain, exceeds 500 ft AMSL, then the elevation must be added to the initial approach altitude.

Note Vertical errors associated with mapping or a database must be included in the 500 ft obstacle clearance.

(b) if the elevation of an obstacle or l(b) if the elevation of an obstacle or low terrain, including small structures on the obstacle or terrain, exceeds 500 ft AMSL, then the elevation must be added to the initial approach altitude.