Pilots must make an altitude correction to the published, “at”, “at or above” and “at or below” altitudes on designated segments, on all published procedures and runways, when the reported airport temperature is at or below the published airport cold temperature restriction.
This simple temperature compensation calculator takes the guess work out of interpolating the table data found in ICAO Doc 8168 and Aeronautical Information Manual (AIM 7-2-3).