Unfortunately, you must pay for your CDL air brake test. You can visit www.cristcdl.com/otc/ab4/ to read more about it.
Being someone with a CDL, you should know there is no actual air brake endorsement on a CDL - you get a restriction barring you from operating air brake equipped commercial vehicles. You need to take and pass the written air brakes test, and you need to conduct a road test in a vehicle equipped with air brakes. Then you can have the restriction removed from your CDL.
When you got your CDL did you take the road test in a air brake equipped vehicle? If you did not then you have to retest to add air brakes. Not the whole test just the air brake portion both written and pre-trip portion of road test.
Take the written air brakes test, and perform a road test in a combination requiring a Class A CDL which is equipped with air brakes.
There is no air brake endorsement. If you do not pass the written air brakes test AND complete your road test in a vehicle equipped with air brakes, then you get a restriction which prohibits you from operating an commercial vehicle which is equipped with air brakes. It is possible to have a Class A CDL with an air brake restriction.
You can't get one. Primarily, because there is no such thing as an air brake endorsement on a US drivers licence. For a non-commercial vehicle (as defined by the FMCSR), absolutely no knowledge of, testing of, or training on air brake systems is required. It is only applicable to CDL holders. If they do not take both the written air brakes test AND conduct their road test in an air brake equipped vehicle, they receive a restriction on their CDL which prohibits them from operating air brake equipped commercial vehicles.
There is no such thing. Training on air brakes is only required by CDL drivers. If they do not complete both the written air brakes test and conduct their road test in an air brake equipped vehicle, they receive a restriction prohibiting them from operating an air brake equipped CMV. For non-commercial vehicles, there is no training or testing requirement in regards to air brake systems, whatsoever, hence, there is no air brake endorsement.
Well, it's impossible to say for certain without knowing what country you're in. If you're in the US, there is no air brake endorsement - a CDL driver must take the written test and conduct their road test in an air brake equipped CMV, or else they'll get a restriction which prohibits them from operating a commercial vehicle equipped with air brakes.
You can get a free CDL air break practice test at www.testquestionsandanswers.com/cdl/air-brakes-test.html You could also try calling around local truck stops for help.
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.
This isn't something you'd do on your own. I would search for a professional in your area who does CDL brake tests.
There is no air brake endorsement - if you don't take both the written air brake test, and do your road test in a vehicle equipped with air brakes, you get a restriction barring you from operating an air brake equipped CMV. But yes, it is possible to have a Class A CDL with a "no air brake" restriction. The requirements for a Class A CDL are that the vehicle be used on a commercial, for-hire basis, that the Gross Combination Weight Rating be over 26,000 lbs., and that the vehicle in tow (the trailer) have a weight rating of over 10,000 lbs. It doesn't have to be a tractor-trailer. You can road test in something like a Ford F650. The F650 is rated at 26,000 lbs - that in itself does not require a CDL. If you attach an eight ton trailer to it, you now have a vehicle requiring a Class A CDL. You can take your Class A CDL road test in that, and you'll receive two restrictions - "no air brakes" (only applicable to CMVs - you can still drive an air brake vehicle not requiring a CDL), and "no tractor-trailers".