Free CDL Handbook Download 2026
Download official CDL handbooks for all 50 states. Your comprehensive reference guide for Commercial Driver License knowledge and regulations.
About CDL Handbooks
The CDL handbook is your essential study guide for passing the Commercial Driver License written examination. Published by each state DMV, these official manuals contain all the information you need to pass your CDL knowledge tests and begin your career as a professional truck driver. Our website provides free downloads of the official CDL handbook for every state in PDF format.
Each CDL handbook covers the federal regulations and testing requirements mandated by the Federal Motor Carrier Safety Administration. The content includes safe driving practices, vehicle inspection procedures, cargo handling requirements, and hours of service regulations. While the core material is standardized nationwide, each state may include additional state-specific rules and procedures that apply to commercial drivers operating within their jurisdiction.
The handbook is organized into sections corresponding to the CDL knowledge tests. Section one introduces the CDL system, explaining the different license classes and endorsements. The General Knowledge section covers topics required for all CDL holders including safe driving, cargo securement, and emergency procedures. Additional sections address specific endorsements such as Air Brakes, Combination Vehicles, Hazmat, Tanker, Passenger, School Bus, and Doubles/Triples.
Studying the CDL handbook thoroughly is critical for exam success. The written test questions come directly from the information contained in these manuals. Pay special attention to the critical numbers sections which cover air brake system pressures, stopping distances, and hours of service limits. These numerical values are frequently tested and must be memorized for the exam.
We recommend combining handbook study with our free CDL practice tests. After reading each section of the handbook, take the corresponding practice test to reinforce your knowledge. This combination of reading and active testing is the most effective way to prepare for your CDL exam. Download your state handbook below and start studying today.
State-Specific CDL Handbooks
Download the official CDL handbook for your state. Each handbook contains state-specific regulations, requirements, and testing information.
Key Topics Covered in the CDL Handbook
Essential knowledge areas for commercial driver licensing
Section 1: Introduction
- Commercial Driver's License overview
- Different CDL classes (A, B, C)
- Endorsements and restrictions
- Commercial Learner's Permit (CLP)
- Testing requirements
Section 2: Driving Safely
- Vehicle inspection procedures
- Basic vehicle control
- Shifting gears
- Seeing and being seen
- Communicating with other drivers
- Speed management
- Space management
Section 3: Transporting Cargo Safely
- Cargo inspection
- Weight and balance
- Securing cargo
- Cargo covers and containment
Section 4: Transporting Passengers Safely
- Vehicle inspection for passenger vehicles
- Loading and trip procedures
- On-road passenger vehicle operations
- Special safety considerations
Section 5: Air Brakes
- Air brake system components
- Dual air brake systems
- Inspecting air brake systems
- Using air brakes properly
Section 6: Combination Vehicles
- Driving combination vehicles safely
- Coupling and uncoupling
- Inspecting combination vehicles
- Backing combination vehicles
Section 7: Doubles and Triples
- Pulling double/triple trailers
- Coupling and uncoupling procedures
- Inspecting doubles and triples
- Special driving considerations
Section 8: Tank Vehicles
- Inspecting tank vehicles
- Driving tank vehicles
- Liquid surge effects
- Bulkheads and baffles
Section 9: Hazardous Materials
- Hazmat regulations
- Hazard classes and placards
- Shipping papers
- Loading and unloading
- Emergency procedures
Section 10: School Buses
- Danger zones
- Loading and unloading students
- Emergency equipment
- Railroad crossings
Critical Numbers to Memorize
These numbers are frequently tested on CDL exams. Make sure you know them!
Air Brake System
Hours of Service
Stopping Distances
Vehicle Inspection
Study Tips
Read Section by Section
Break the handbook into manageable chunks. Focus on one topic at a time.
Take Notes
Write down key regulations, numbers, and procedures as you study.
Use Practice Tests
Test your knowledge regularly with our state-specific practice exams.
Review Critical Numbers
Memorize air brake pressures, stopping distances, and HOS limits.
Ready to Test Your Knowledge?
Put your handbook knowledge to the test with our state-specific practice exams.