Cdl license a commercial drivers license cdl is a drivers license that authorizes a person to operate a class of commercial motor vehicles cmvs federal standards define three classes of cdls each for a corresponding group of motor vehicles class a combination vehicles any combination of vehicles with a gross combination weight rating gcwr of at least 26001 pounds provided . Free download cdl sample exam simulator vce exam simulator installation guide killexams exam simulator 309 is industry leading test preparation software for cdl exam we guarantee that when you practice certification board cdl exam through our vce exam simulator you will be confident in all the topics of the exam and will be ready to take the actual test any time. Commercial learners permit clp cdl practice quiz getting on the road is more than just earning a commercial drivers license cdl just as you have to get a learners permit before getting your regular drivers license you need to earn a commercial learners permit clp before you can earn your cdl. Commercial drivers require advanced knowledge and skills beyond those needed to drive lightweight cars hence since 1st april 1992 drivers are required to obtain the cdl commercial drivers license in order to drive and operate commercial motor vehicles in the united statesto obtain this cdl you need to study the cdl manual and pass the 50 multiple questions test with over 80 percent