The 12-hour air brake training is required if you want to upgrade your current Class “G” licence to a higher class. The 12-hour Air Brake Endorsement Course, sanctioned by the Ministry of Transportation, will be delivered by Pearl Driving School. Here, we go through the basics of braking, compressed air, vehicle braking systems, and system operation. You can apply for the Z endorsement course after completing the Air Brake (Z) Endorsement Program.