An “Z” endorsement course is a mandatory requirement for drivers operating vehicles equipped with air brakes. It teaches drivers about the proper use, maintenance, and inspection of air brake systems and ensures that they have the knowledge and skills necessary to operate these vehicles safely. You need this course to obtain your commercial driver’s licence (CDL) in Ontario. You can apply for both, class A licence and air brake endorsement course, at the same time at our truck driving school in Brampton.