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CDL

Commercial Driver's License for all 50 states

CDL General Knowledge

Core knowledge test required for all CDL classes. Covers vehicle inspection, basic control, and safe driving practices.

120exams.questionsStat

80%exams.passingScore

90exams.timeLimit

5exams.topicAreas

Hazardous Materials (H) endorsement. Covers placarding, shipping papers, loading/unloading, compatibility, and emergency response.

30exams.questionsStat

80%exams.passingScore

60exams.timeLimit

Tank Vehicle (N) endorsement. Covers liquid surge, baffled vs. smooth bore tanks, outage, rollover prevention, and safe curve driving.

30exams.questionsStat

80%exams.passingScore

45exams.timeLimit

exams.basedOn