None - there is no such thing as an air brake endorsement on a US license. If a CDL applicant does not pass the written air brake test AND perform their pre-trip and road tests with a vehicle so equipped, they'll receive a restriction prohibiting them from operating an air brake equipped Commercial Motor Vehicle (this does not impact non-CMVs, such as RVs operated for private use).
No such thing as an air brake endorsement on a US license.
There is no such thing as an air brake endorsement on any license in any US state or territory.
No, because there is no such thing as an air brake endorsement on a US license.
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 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.
No such thing as an air brake endorsement on a US license. If a CDL applicant does not pass the written air brakes test and perform their pretrip and road tests in a CMV equipped with air brakes, then they receive a restriction which prohibits them from operating a CMV equipped with air brakes.
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.
No. There is no air brake endorsement. If you completed the written air brakes test and did your road test in a vehicle equipped with air brakes, you're certified to operate an air brake equipped CMV. Otherwise, you'll have a restriction on your license which prohibits you from operating a CMV equipped with air brakes (although this does not apply to non-CMVs, such as U-Haul trucks and RVs).
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.
In some countries, to be permitted to operate an air brake equipped vehicle, your licence must show an endorsement which permits you to. In the US, "air brake endorsement" is actually a misnomer - there is no air brake endorsement on a US licence. If a CDL driver does not pass the written air brakes test and conduct their road test in an air brake equipped vehicle, they get a restriction prohibiting them from operating an air brake equipped commercial vehicles. However, this is only applicable to commercial vehicles - operating a non-commercial vehicle with air brakes requires absolutely no qualification, whatsoever.
There's no such thing as an air brake endorsement on any US license - only a restriction for CDL holders which bars them from operating a vehicle requiring a CDL which is equipped with air brakes if they don't pass the written air brakes test and perform their pretrip and road tests in a CMV which is equipped with air brakes.
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.