Canada's National Airport System (NAS) was defined in the National Airports Policy published in 1994. It was intended to include all airports with an annual traffic of 200,000 passengers or more, as well as airports serving the national, provincial and territorial capitals.
All airports, with the exception of the three territorial capitals, in the NAS are owned by Transport Canada and leased to the local authorities operating them.
As of 1994, the 26 NAS airports served 94% of all scheduled passenger and cargo traffic in Canada.
NAS airports
The following list contains the 26 NAS airports effective 17 April 2010, along with their IATA codes and passenger numbers for 2014:
References
National Airports System Wikipedia(Text) CC BY-SA