CDL Pro: Test Prep

CDL Pro is an independent CDL permit test prep app designed to help you study for the commercial driver’s license written knowledge test.

Practice CDL-style questions, review explanations, take timed exams, and study key topics at your own pace.

Study CDL topics including:
• General Knowledge
• Air Brakes
• Combination Vehicles
• Hazardous Materials
• Tanker
• Doubles/Triples
• Passenger
• School Bus
• Vehicle inspection
• State-specific CDL prep

Features include:
• CDL practice questions
• Timed permit exam simulations
• Quick mixed exams
• Full mixed exams
• Hard mixed exams
• Flashcards for faster review
• Detailed explanations for missed questions
• Progress tracking and weak-area review
• State-specific study tools

Official information sources:
CDL Pro uses publicly available CDL study and licensing information from official government sources, including:

FMCSA Commercial Driver’s License Program:
https://www.fmcsa.dot.gov/cdl

FMCSA CDL Manual:
https://www.fmcsa.dot.gov/registration/commercial-drivers-license/cdl-manual

FMCSA Entry-Level Driver Training information:
https://www.fmcsa.dot.gov/registration/commercial-drivers-license/entry-level-driver-training-eldt

State CDL manuals:
State-specific information is based on publicly available state DMV, DOT, or driver licensing agency CDL manuals and resources. Requirements can vary by state, so you should always check your official state licensing agency website for the most current CDL manual, testing rules, fees, endorsements, and licensing requirements.

Disclaimer:
CDL Pro is an independent educational study app. CDL Pro does not represent any government entity.

CDL Pro is not affiliated with, endorsed by, authorized by, or sponsored by any DMV, DOT, FMCSA, state licensing agency, or government agency.

CDL Pro does not issue commercial driver’s licenses, schedule CDL tests, process applications, provide legal advice, or provide government services. The app is for educational test preparation only.