Although each state may add additional restrictions, there are national requirements which are as follows. A prospective driver must pass a written test on highway safety and a test about different parts of a truck with a minimum of 30 questions on the test. To pass this knowledge test, student drivers must answer at least 80 percent of the questions correctly. To pass the driving skills test, the student driver must successfully perform a set of required driving maneuvers. The driving skill test must be taken in a vehicle that the driver operates or expects to operate. For certain endorsements, such as air (pneumatic) brakes, the driving skills test must be taken in a vehicle equipped with such equipment. If the test is done in a vehicle equipped with an automatic transmission. Then a restriction of E will be placed on the license prohibiting the driver from operating a vehicle with a manual transmission. You will also need to show you do in fact show the characteristics of an aware and fully operative driver. This does not exclude certain disabilities; however, you must meet standard requirements, required by the safety operators.