We used to live in Alberta a year ago. I have a CDl but my wife wanted to get legal to drive the coach and was told she needed an airbrake endorsement on her class 5 licence.
We found a driving school for commercial vehicles and they would do classes every so often for people to get their air endorsement. At that time it was $125 and a full day of class and you were good to go. Hope that helps.
Dennis & Marcie & Hook The Jack Russell, 2001 HR Imperial 38wds 350 Cummins, 07 Chevy Trailblazer/Blue Ox/Ready Brake, 04 Dodge 3500 Cummins,