As a commercial driver you will earn your living driving the nation’s roads and highways.  But before you can obtain your commercial driver’s license, you must pass a series of general knowledge test and road skills tests. Published by the Iowa Department of Transportation (IDOT), the official Iowa CDL manual is the perfect study guide to help you begin preparing for the exam.  The manual includes detailed information on the various classes of commercial licenses, required endorsements, the application process, and basic vehicle control.

Will the Manual Prepare You for the Test

The manual is definitely the first step on your journey towards your CDL however it’s essential that you test your knowledge as well.  Our free Iowa CDL practice tests are the perfect complement to the manual.  Designed to simulate the real exam, the practice tests feature a series of multiple-choice questions designed to help you quickly test your knowledge before sitting for the real exam.

Information Covered in the Manual

The Iowa Commercial Driver’s License manual covers information regarding the CDL application process, medical and age requirements, basic vehicle control, endorsements, restrictions, and associated fees.  The book also covers important traffic laws and safe vehicle operation to help you understand how to become a responsible and safe driver.  For example:

  • Of all the space around your vehicle, the space ahead of you is the most important.
  • A complete stop is required at grade crossings depending on the type of cargo you are carrying.

To help quickly find the information you are looking for, the manual has been divided into sections based on the CDL class and endorsements you are interested in:

  • Driving Safely
  • Transporting Cargo Safely
  • Transporting Passengers Safely
  • Air Brakes
  • Combination Vehicles
  • Doubles and Triples
  • Tank Vehicles
  • Hazardous Materials
  • School Bus
  • Vehicle Inspection
  • Basic Vehicle Control Skills Test
  • On-Road Driving

Think You're Ready for the Iowa CDL Test?

Find Out Before You Take the Exam.

Take a free IA CDL test