Free Resources
Study Guides & Career Info
Each card gives a short topic overview, a free practice test on that topic, and a link to related information on this site. Full written study guides are not published yet — always study your official state CDL manual.
4 study topics, each paired with one of 3 free practice tests.
Pre-Trip Inspection Checklist
A structured walk-around sequence with inspection points and clear practice language.
Practice test: Combination Vehicles20 questions · about 12 min
Air Brake Study Guide
System components, the applied leakage test, and common failure points.
Practice test: Air Brakes20 questions · about 12 min
Coupling & Uncoupling Steps
Step-by-step tractor-trailer coupling procedure for the skills test.
Practice test: Combination Vehicles20 questions · about 12 min
Hours of Service Basics
An introduction to common hours-of-service concepts and terminology.
Practice test: General Knowledge20 questions · about 12 min
These cards are topic orientation and practice, not complete study guides. For the full material, use your official state CDL manual.
CDL theory training information
Explore public information about CDL theory training and what a course experience can include.
Step-by-step walkthroughs
Lessons move one step at a time with Back and Next, so you control the pace and can replay any step.
Instructor cue, observe, remember
Each step separates what the instructor is saying, what to look at, and what to carry away.
Clear labels on what you're viewing
Steps label the view on screen so it's clear what component you're looking at.
Already enrolled? Sign in to your student account
Careers
Where a CDL can take you
OTR Dry Van
Long-haul freight across regions, often multi-day trips.
Regional Reefer
Temperature-controlled freight, usually shorter hauls than OTR.
Local Dump / Construction
Short-haul work, seasonal demand, often Class B friendly.
Tanker & HazMat
May require additional endorsements and employer-specific qualifications; confirm requirements for the work you're considering.
Free tools and training information
Everything on the left is open to anyone, right now. The right side points to general information you can request about possible training next steps.
Study on your own
160 practice questions across 8 test areas, plus topic resources.
Free practice tests
Answer real-format questions and read an explanation after every one of them.
Start a practice testStudy resources
Topic overviews, practice links, and related requirements information; these are not full study guides.
Explore resourcesRequirements in plain English
License classes, permits, medical steps and endorsements, explained.
Read the requirementsYour state's process
Ages, permit hold times and fees are set state by state.
Browse state guides
Request training information
Send your state and goal to request general information about possible training next steps.
Training options to research
Share the driving you want to do and request general information about options that may be available.
Request informationPricing and inclusions
Current pricing, availability, and what's included depend on the program and should be confirmed before making a training decision.
Request informationQuestions about next steps
Use the contact page to request general information about public resources and possible training next steps.
Send your question
Turn this studying into progress
Three things you can do right now, in order.
Practice the written test
FreeWork through practice questions with an explanation on every answer.
Check the requirements
FreeLicense classes, permits, medical steps and endorsements in plain English.
See the full training path
OverviewThe ordered steps from CDL theory study to behind-the-wheel training.
Already a student? Sign in to pick up your training where you left off.
Sign inPut it into practice
Review what you've studied with free CDL practice tests.