Usually, no, although that's something which could vary by state. You would need to contact your state's DMV 1: to see if they even have a chauffeur licence (not all states do) and 2: to see if a DOT...
Your medical card has to do with your medical condition and has nothing to do with air brakes. Air brakes is an endorsement on your license. To qualify for driving a vehicle with air brakes, you must...
The techniques of inspection include palpation (feeling with the hands and/or fingers), percussion (tapping with the fingers), auscultation (listening), and smell. A complete health assessment also...