Loads over 10 feet 6 inches (3.2 m) require escorts except on the main wide load corridors (Enhanced Visibility Highways) - Highway #1 to Yellowknife and Highway #2 to Hay River where loads can be up to 12 feet 7 inches (3.85 m). Loads over 12 feet 7 inches (3.85 m) require escorts to lead or follow the load by a distance of 328 feet (100 m) to 2626 feet (800 m). Loads from 14 feet 7 inches (4.45 m) to 18 feet 5 inches (5.5 m) require both a lead pilot and a trail vehicle. All loads over 18 feet 5 inches (5.5 m) also REQUIRE pre-authorization from the Enterprise Weigh Scale.
Escorts not required when load is only high.
Loads over 101 feet 9 inches (31 m) require a trail vehicle at all times.