Your Questions, Answered.

When a CHP officer stops a CDL truck driver, they will ask for your CDL license, vehicle registration, and medical certificate. They may then conduct a North American Standard Inspection of your vehicle, cab, and logbook. Stay calm, keep your hands visible, and have your documents ready. Our training prepares you for every step of this interaction.

Yes. Federal regulation 49 CFR 391.11 requires CDL drivers in interstate commerce to speak and read English well enough to understand highway signs, respond to official inquiries, and make entries on records. A CHP officer can place you out of service if you fail an English proficiency check — meaning your truck goes nowhere until a qualified driver takes over. This training prepares you to pass that check.

The North American Standard Inspection has 6 levels. The three most common are:

Level I — Full inspection: driver documents, vehicle components, cargo securement. The most thorough.
Level II — Walk-around inspection: everything visible without going under the vehicle.
Level III — Driver-only inspection: CDL, medical certificate, hours of service, seatbelt, and English proficiency.

Our 200 questions cover all three levels in detail.

Always have these ready in your cab:

• CDL (Commercial Driver's License)
• Medical Examiner's Certificate
• Vehicle Registration
• Proof of Insurance
• Hours of Service Logbook or ELD printout
• Bill of Lading / Shipping documents
• Annual Vehicle Inspection Report

Our training teaches you exactly what officers look for in each document and how to present them correctly.

As a CDL driver you have important rights: you have the right to know why you were stopped, the right to receive a copy of any citation or inspection report, and the right to contest violations. However, you are legally required to submit to a roadside inspection if requested by a law enforcement officer. Refusing is itself a violation. Our training covers both your rights and your obligations.

This is exactly what our training addresses. We teach you the most common English phrases and questions CHP officers use during a stop, so you can recognize and respond to them even if English is not your first language. You will know what "step out of the vehicle," "produce your logbook," and "are you carrying hazmat?" mean — and how to respond correctly.

Go to cdllang.net, enter your CDL number, and you're in. No app, no account, no password. Your CDL number is your permanent ID.

New students pay a one-time enrollment fee to unlock all 200 questions. There are no monthly charges, no renewals, and no hidden fees. Once you're enrolled, your access never expires.

No problem. Your progress is saved automatically after every question. Come back anytime, enter your CDL number, and you will resume exactly where you left off.

Yes — it was designed mobile-first. Train from your cab, at a rest stop, or anywhere you have a signal. No app download required.