Required for transporting dangerous goods; requires a background check (30 questions).
Depending on your career goals, you may need to take additional "endorsement" knowledge tests: cdl permit test
The is the foundational hurdle for anyone aspiring to enter the commercial trucking industry. Officially known as the Commercial Learner's Permit (CLP) exam, this written test ensures you possess the fundamental knowledge required to safely operate massive vehicles on public roads before you ever sit in the driver's seat for training. Mandatory for a Class A CDL
Mandatory for a Class A CDL. It covers the unique physics and safety rules for tractor-trailers, consisting of about 20 questions . Endorsement Tests Necessary if the vehicle you plan to drive uses air brakes
For pulling more than one trailer (knowledge test only).
Necessary if the vehicle you plan to drive uses air brakes. This section usually has 25 questions .