Official CDL Test Prep

Created in partnership with AAMVA and Iowa DOT, the Official CDL Test Prep has everything you need to pass your Iowa Commercial Drivers License (CDL) test the first time!

With over 600 exam-like questions, lifetime access to the complete CDL Manual, and dozens of test-taking strategies, the Official CDL Test Prep helps you get the score you need. Spanning every stage of a CDL professional's career, from pre-licensing and your initial license to driving combinations, hazardous materials, school buses, and more, the Official CDL Test Prep offers a comprehensive review of critical material.

Install the app for free to jump start your studying!
We have provided limited access to the CDL Manual, along with a small number of questions for you to sample before deciding to upgrade.

Upgrade to the Premium Version with a one-time, in-app purchase that includes lifetime access to:
• 600+ exam-like practice questions
•Detailed explanations with images
•Developed by experts
•Includes the complete Iowa CDL Manual
•Access to all 13 chapters
•Corresponds with the American Association of Motor Vehicle Administrators (AAMVA) manual
•40+ must-know definitions
•Dozens of tips and strategies to help you pass
•Created in partnership with the Iowa DOT and AAMVA

The Official CDL Test Prep is organized into 13 sections or chapters, corresponding to the American Association of Motor Vehicle Administrators (AAMVA) manual, with study questions attached to many sections. Master the material by reviewing key definitions or dig deep into the practice question bank of over 600 items.

With the Official CDL Test Prep in your toolkit, you will have all the information you need to master the Iowa CDL knowledge exam and kickstart your career.

Have a question or would like to share your feedback? Please send us an email at professional@hltcorp.com.