There are currently 29 accredited airports at Level 1 'Mapping', representing 18.7% of North American air passenger traffic.
There are currently 16 accredited airports at Level 2 'Reduction', representing 7.8% of North American air passenger traffic.
There are currently 20 accredited airports at Level 3 'Optimisation', representing 14.4% of North American air passenger traffic.
There is currently 2 accredited airports at Level 3+ 'Neutrality', representing 1.1% of North American air passenger traffic.
There are currently 4 airports accredited at Level 4 'Transformation', representing 6.0% of air passenger traffic in the region.
At present, 3 airport managed to secure Level 4+ ‘Transition’ in the North American region, representing 6.3% of air passenger traffic.