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Iowa commercial driver's licenses

CDL pre-trip inspection

Review section 11 in the Commercial Driver License Manual to prepare for and successfully pass the pre-trip vehicle inspection test.
  • You must successfully demonstrate all three components of the airbrake check before you start the pre-trip vehicle inspection test – prepare for this by reviewing the information in section 11.
  • If you do not pass the airbrake check and/or the pre-trip vehicle inspection test, you must make another appointment to retake the test – that could be two or three weeks out, which will delay the issuance of your commercial driver’s license.
PDF file CDL Pre-Trip Inspection Memory Aid

CDL manual
Commercial Driver's License in a Nutshell
CDL Manual CDL In a Nutshell