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Colorado CDL Manual

Study the CO CDL Manual

Study the Colorado CDL driving manual and get ready to pass your commercial driver's license, permit or renewal test. This page contains the latest version of the CO CDL handbook PDF in format. The Colorado CDL manual covers a variety of topics, and everything you'll need to study to pass your CDL test or get the endorsement you need, including: CDL general knowledge and requirements, combination vehicles, air brakes, tank vehicles, hazmat, doubles triples, passenger vehicles, school bus, vehicle inspection and road skills test.
After reading the handbook, head over to our free Colorado CDL practice tests.
Studying the Colorado CDL manual and taking our free CDL practice tests is the best strategy to prepare for the actual CDL knowledge test and pass!

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