The Commercial Driver’s License (CDL) test contains two parts: a written knowledge test and skills test. There are seven knowledge tests in total: one covers general knowledge, five cover specific endorsements, and an Air Brakes test. Each knowledge test is scored separately, and most drivers only take three or four. The tests you take depend on what type of commercial vehicle you intend to drive, but all of the knowledge tests must be taken in the state where you reside. Please be aware that different states may have slightly different regulations, especially for transporting hazardous substances. Be sure to check your state’s CDL manual for confirmation of these regulations.
All questions are multiple-choice with four answers. The skills test is performed in front of an examiner and divided into three parts: vehicle inspection test that tests your ability to decide if a truck is safe to drive; basic control skills test that tests your ability to park, turn, and back up the vehicle; and a road test that gauges your ability to safely drive the vehicle on the road. Every person wishing to obtain a Commercial Driver’s License must take and pass all three parts of the skills test.