Ministry of Transportation Approved Air Brake Z Endorsement Course @ Atlantic Truck Training School Solid Knowledge of Fleet Operations & Experience in Driver Training. We are providing a 12 hours Air Brake or 'Z' Endorsement Training Course which includes how the air brake system works, its many components, how to operate the air brake system and to identify defects in the system. Written and practical Air Brake testing will be completed in the course. Successful participants will be able to have the 'Z' Endorsement added to their license .