CDL Practice Test 2026

Road signs and the federal rules behind them — with every answer tied to the section it came from, so you can go read it yourself.

What it does

• 307 road signs, with the official drawing and the section of the federal sign manual that defines each one. Flashcards and a scored 20-sign test.
• A truck filter: weight limits, weigh stations, low clearance, runaway ramps, grades — the signs that matter to a commercial vehicle, first.
• 115 written questions on Title 49 of the Code of Federal Regulations: hours of service, alcohol, brakes, cargo securement, inspection and hazardous materials.
• Every answer quotes the section it comes from, word for word. Not a paraphrase — the text of the rule.
• What you miss comes back first. A question counts as known after two correct answers in a row; with four choices, one can be luck.

Where the content comes from

The signs, their official names and the explanations come from the Manual on Uniform Traffic Control Devices (11th Edition), published by the Federal Highway Administration. The written questions come from Title 49 of the Code of Federal Regulations.

Both are federal documents in the public domain. Nothing here is copied from any state's CDL manual.

What this is not

Your state gives the CDL test, from your state's manual. This app drills the signs and the federal rules behind them. It does not replace that manual, and there are parts of the test it does not cover — the maneuvers and the air brake endorsement among them.

Passing every round here does not mean you will pass at the DMV. It means you know the signs and the federal rules.

What it costs

The 307 road signs — flashcards and the scored test — are free, with no ads. On their own they are a usable app, not a trimmed sample.

The written test is a single payment. No subscription: you are studying for a licence, not renting a gym. Once you have it, you are done with us.

It works with no signal

Everything runs on your iPhone. There is no account, no server of ours, and nothing to sign up for. A lot of studying happens in a cab or a waiting room with no bars, and it should work there.

Not affiliated with the FMCSA, the FHWA, AAMVA, or any state licensing agency. The sign designs and the regulations are published by the United States government.