In the Lone Star State, there's one export that always seems to outperform every other; black gold. If you want to get involved in the export industry in Texas, perhaps you want to haul oil in a huge tanker, a commercial driver's license should be your first port of call. For $61, you can get a five-year license until you reach the age of 85. If you don't want your career to come to an end at this age, $26 will buy you a two-year continuance. Either way, you'll need to take a written test and a skills test. Although they can be scary, we have all the information you need. The Class A test has 70 questions while the Class B and C exams have 50; the best way to ensure success is with our advanced cheat sheets and practice tests!