CDL One Stop

Get road-test ready for your New Jersey Commercial Driver's License. CDL Prep turns studying into a clear path — realistic practice, a guided pre-trip walk-around, and a readiness score that tells you when you're actually ready to test.

PRACTICE THAT MIRRORS THE REAL EXAM • Hundreds of NJ-style questions across General Knowledge, Air Brakes, Combination Vehicles, and Endorsements • A clear explanation after every question, so you learn from each miss • Quick or extended sessions — study in 5 minutes or go deep

MASTER THE PRE-TRIP INSPECTION • Interactive Parts Map: learn every truck component and how to inspect it • "How to Say It" drills to rehearse the spoken walk-around out loud • In-depth component deep-dives

KNOW EXACTLY WHEN YOU'RE READY • A readiness dashboard that blends your accuracy with how much of each question bank you've covered • Automatic weak-area targeting • A mistake bank that retires questions once you've truly mastered them, plus a Review Mistakes mode

BUILD THE HABIT • Daily streaks and a study calendar • Key Dates: track your class, truck-training, and DMV road-test dates — and export them to your calendar • Achievement badges and a leaderboard to keep you moving

Set up for NJ Class A and your transmission (automatic or manual), so you only study what applies to you. Everything runs on-device — practice anywhere, even without a connection.

CDL Prep is an independent study aid and is not affiliated with or endorsed by the New Jersey Motor Vehicle Commission or any government agency.