CDL Study Information

To help you prepare for the CDL written test:

Study Guide Material

Study these written manuals and articles.

• 2017 California CDL Manual (PDF)

• California CDL Study Guide (shorter than the Manual) (PDF)

• CDL Study Buddy

• Union Test Prep CDL study guide

Videos/Audios

Watch videos and listen to them in audio format.

• Apex CDL Institute pre-trip inspection ( Video )

• CDL Study Buddy inspections ( pre-trip, air brake check, DOT ) (Videos)

• CDL Study Buddy General ( Audio )

•  California CDL Study Guide: Part 1, Part 2, Part 3 (Audio)

Practice Tests

Practice your knowledge.

• CDL Study Buddy Practice Tests

• Driving Test practice tests

• Test Guide CDL practice tests

• General Knowledge (PDF)

• Air Brakes (PDF)

• Passenger Vehicles (PDF)

Need to find a DMV? Click here to locate one.