Air brakes don't matter insofar as license classes go. If it's a bus designed to transport more than 15 persons (including the driver), you'd need a Class C CDL with passenger endorsement (school bus endorsement if it's a school bus). If it's a vehicle carrying a quantity of hazardous materials which requires placards to be displayed, you'd need a Class C CDL with a hazmat endorsement. Otherwise, an ordinary driver's license (the class varies by state).
Yes, so long as it is not classed as a Commercial Motor Vehicle (CMV). For a vehicle under 26,000 lbs. Gross Vehicle Weight Rating to be classed as such, it would need to either be a bus designed to transport more than 15 persons (including the driver) or carrying a quantity of hazardous materials which required the display of hazmat placards.
No
No. Air brakes are not a factor in determining whether or not a CDL is required in any state. The only instance in which you would need a CDL is in cases where the vehicle is transporting an amount of hazardous materials which requires the display of placards, or when it's a bus designed to transport more than 15 persons (including the driver).
Only if it's hauling hazmat or is a bus designed to transport more than 15 passengers (including the driver). Air brakes have absolutely nothing to do with whether or not a vehicle requires a CDL.
Only if it's a: transporting hazardous materials or b: a bus designed to transport more than 15 persons (including the driver).
Air brakes have absolutely ZERO determination in whether or not a vehicle requires a CDL.
Not unless it's a bus designed to transport more than 15 passengers (including the driver).
Only if it's carrying hazardous materials in an amount requiring it to be placarded, or if it's designed to transport more than 15 persons (including the driver).
On a US drivers licence, there is no air brake endorsement - there is only an air brake restriction, and it is only applicable to CDL licences and commercial vehicles. Vehicles of 26,000 lbs. or less GVWR only require a CDL if they're hauling hazardous materials, or if they're designed to transport more than 15 persons (including the driver). Otherwise, most states will allow you to drive it on the same licence you use to drive any regular passenger car, without any requirement to be trained in the proper use of air brakes.
Only in cases where the vehicle fits the criteria where it requires a Class C CDL. Examples would include vehicles designed to carry more than 15 passengers (including the driver), and vehicles carrying hazardous materials in a quantity sufficient to require placards to be displayed. If a vehicle under 26,000 lbs. does not meet the criteria where it requires a CDL, then it can be driven on a regular Class C licence, whether it has air or hydraulic brakes, without any additional testing.
No. Air brakes are not a factor in determining whether or not a CDL is required in any state. The only instance in which you would need a CDL is in cases where the vehicle is transporting an amount of hazardous materials which requires the display of placards, or when it's a bus designed to transport more than 15 persons (including the driver).
Only if it's transporting 16 or more persons (including the driver) or sufficient quantities of hazardous material to require placarding with HAZMAT warning signs.