You can't get an air brake endorsement ANYWHERE in the US on ANY class of license, because it doesn't exist.
There is no such thing as an air brake endorsement on any license in any US state or territory.
The Z Endorsement on a driver's license depends on where you are getting your driver's license.In the state of Delaware, you must have a Z Endorsement to be a taxi driver.In the state of Utah, you must have a Z Endorsement on your Class D driver's license in order to be a taxi driver or a chauffeur.In the state of Wyoming, “Z” authorizes the holder of a class C license to operate a vehicle or combination of vehicles which have a gross vehicle weight rating of thirty-nine thousand one (39,001) pounds or more that do not require a commercial driver's license.In the province of Ontario, anyone who drives a vehicle fitted with an air brake system or an air-over-hydraulic brake system is required to have a Z endorsement on their driver’s license.
The Z Endorsement on a driver's license depends on where you are getting your driver's license.In the state of Delaware, you must have a Z Endorsement to be a taxi driver.In the state of Utah, you must have a Z Endorsement on your Class D driver's license in order to be a taxi driver or a chauffeur.In the state of Wyoming, “Z” authorizes the holder of a class C license to operate a vehicle or combination of vehicles which have a gross vehicle weight rating of thirty-nine thousand one (39,001) pounds or more that do not require a commercial driver's license.In the province of Ontario, anyone who drives a vehicle fitted with an air brake system or an air-over-hydraulic brake system is required to have a Z endorsement on their driver’s license.
It depends on the laws in your state. Some states don't have separate motorcycle licenses - motorcycle is an endorsement, so yes, you would need a drivers license with a motorcycle endorsement. However, other states offer a Class M license which is just for driving motorcycles. If you later want a vehicle driver's license, then you get a new license and the Class M endorsement is added to the new license.
No... it is a misdemeanor. If you get the class M (motorcycle) endorsement before your court date the judge will likely dismiss it.
It all depends on the state you live in. For example, in VA it is possible to have a motorcycle license without having a drivers license. If you already have a drivers license, you would get an M-Class endorsement.
The job requirements for a transportation driver are vary from state to state. One of them is that a driver possess a Commercial Driver's License - Class B with Passenger endorsement.
There is no such thing as an air brake endorsement on a US license - only a restriction for CDL holders who do not pass the written air brakes test and perform their pretrip and road tests in a CMV which is equipped with air brakes.
You can't get one, because such an endorsement does not exist.
Air brake endorsements fall under Federal laws so every state will have the same minimum requirement for an air brake endorsement if you have air brakes on your vehicle.
There is no such thing as an air brake endorsement on ANY license in ANY US state or territory. For people with a CDL, if they do not complete and pass the written air brakes test and perform their road test in a vehicle so equipped, they get a RESTRICTION on their CDL which prohibits them from operating a commercial motor vehicle which is equipped with air brakes.
You'd have to specify which state it is. It's not an endorsement listed on the federal regs, but states may have additional endorsements they add which are exclusive to their state. Could it be possible that what you saw was a restriction, rather than an endorsement?