Canada is considering a plan to extend the country's airport runways to comply with the 1999 International Civil Aviation Organization's minimum 150m runway.
Canadian federal aviation officials said that the expansion to bring airport runways up to international safety standards will cost at least $400m.
Transport Canada officials revealed that the department is committed to a draft regulation, which will receive final approval in 2012, requiring mandatory 150m unobstructed emergency stopping zones at each end of the country's runways.
Major Code 3 and 4 runways require a graded, unobstructed buffer zone extending 60m past the runway end, which is required for emergency stopping.
The country's new draft regulation will extend that safety zone by 90m, according to vancouversun.com.
Approximately 50 of Canada's 211 airports that fall under the regulation already comply with or exceed the 150m runway.
The airports will have five years to complete the work once the regulation comes into force.