Introducing our CDL Study Guide 2024-2025: 3 Practice Tests and CDL Permit Exam Prep! Trivium Test Prep's CDL Study Guide includes everything you need to pass the CDL exam the first time.Quick review of the concepts covered on the CDL exam 3 full practice tests with detailed answer explanations Tips and tricks from experienced CDL drivers Additional Online Resources Trivium Test Prep's CDL Study Guide is aligned with the official CDL exam framework. Topics covered include: Controlling the Vehicle Driving Safely Driving in Hazardous Conditions Driving Hazards and Emergencies Transporting Cargo The Air Brake SystemInspecting and Using Air Brakes Combination Vehicles Double and Triple Trailers Passengers Tank Vehicle Hazardous Materials School Bus Metal Coils Vehicle Safety Inspection Basic Vehicle Control Skills Test Road Test Federal Motor Carrier Safety Administration (FMCSA) and Department of Transportation (DOT) were not involved in the creation or production of this product, is not in any way affiliated with Trivium Test Prep, and does not sponsor or endorse this product.