Altimeter Setting and Operating Procedures

Reference AIM RAC 2.11 and 2.12

ALTIMETER SETTING REGION

CAR 602.35 

• Departure: altimeter setting at aerodrome, or if not available the elevation of the aerodrome
• Enroute: altimeter setting of nearest station along route
• Arrival: altimeter setting at destination

STANDARD PRESSURE REGION

CAR 602.36

• Departure: altimeter setting at aerodrome, or if not available the elevation of the aerodrome
• Enroute: immediately prior to reaching the intended flight level, set 29.92
• Arrival: altimeter setting at destination
• Holding: once descending below lowest flight level of hold, altimeter setting at destination

TRANSITION BETWEEN REGIONS

CAR 602.37

• the simplest way to think about this is to always change the altimeter in the standard pressure region, whether it is a lateral or vertical transition