I can't help but think that something is missing from the question. Could you review it and post the completed question?
As for me, personally, yes, I can. I have a Class A CDL, and no air brake restriction.
Air brakes have absolutely ZERO determination in whether or not a vehicle requires a CDL.
Air brakes have absolutely NO effect on whether a vehicle requires a CDL or not.
No. Air brakes are not a parameter in determining whether or not a vehicle needs a CDL.
There is no air brake endorsement. If a CDL driver does not complete and pass the written Air Brakes test and perform their road test in an air brake equipped vehicle, they receive a restriction which prohibits them from operating a commercial vehicle with air brakes.
Whether a vehicle has air or hydraulic brakes has no impact on what kind of license is required to operate it in the US.
Whether a vehicle has air, hydraulic, or air-over-hydraulic brakes has zero determination on the class of license required to operate it.
No. Air brakes don't determine whether or not a CDL is required for a vehicle, and CDLs are for road vehicles - a trolley is a rail vehicle.
If you're in the US, there is no such thing as an air brake endorsement. CDL drivers receive a restriction which prohibits them from operating a commercial motor vehicle equipped with air brakes if they do not pass both the written air brakes test and do their road test in a vehicle equipped with air brakes.
brakes.
Air brakes have absolutely no determination on whether or not a vehicle requires a CDL. Zip. Zilch. Nada. Not just in Maryland, but in any state.
Only if it's a vehicle equipped with air brakes.
The braking system doesn't determine whether or not a vehicle requires a CDL.