Is QuizLane a free CDL practice test online?

Yes. You can start a free CDL practice test online with no account. QuizLane currently publishes 600 reviewed CDL items across general knowledge, air brakes, combination vehicles, hazmat, tank, doubles/triples, passenger, and school bus. Scores describe performance inside QuizLane—they are not an official exam result.

What score do you need on a CDL knowledge test?

80%. Federal rule 49 CFR 383.135(a)(1) requires applicants to correctly answer at least 80 percent of the questions on each knowledge test. States set the question count; the pass percentage does not change.

How is QuizLane different from an official CDL exam?

QuizLane is independent study material with original wording and citations back to official handbooks and the CFR. It is not affiliated with FMCSA or any state licensing agency, does not replace Entry-Level Driver Training, and never guarantees a passing score on test day.

Where should I start?

Pick your state above, run a short general-knowledge practice set, read every explanation, then open the endorsement areas you need. Confirm current requirements with your state agency—each QuizLane CDL hub links it.

Free CDL practice test online

Free CDL practice test for every state.

Start a free CDL practice exam online—no sign-up. 600 reviewed questions cover general knowledge and endorsements, with explanations and citations. Then check the federal 80% pass mark, 14-day learner's permit hold, and where your state differs.

See CDL requirements by state

Popular starting points

50 states + Washington, DC

Choose your jurisdiction

51 study hubs Official agency links

Federal rules, state variations

What every CDL applicant has to clear

Unlike permit tests, CDL knowledge testing is set federally in 49 CFR, so these four apply in every state.

80%

Passing score

49 CFR 383.135(a)(1)

14 days

Learner's permit held first

49 CFR 383.25(e)

Min. age for a permit

49 CFR 383.25(a)(4)

Min. age across state lines

49 CFR 391.11(b)(1)

Where states differ

States set their own test length and can be stricter than the federal floor. Most publish only the 80% pass rate and never an item count — we have a verified question count for just 13 of the 51 jurisdictions checked so far, and blanks below are figures we would not publish without an official source. Pennsylvania requires a longer permit hold than the federal 14 days.

CDL general knowledge question count, correct answers required, minimum in-state age, and commercial learner’s permit holding period for each jurisdiction QuizLane has verified.
State	Questions	To pass	Min. age	Permit held
Alabama	—	—	18	14 days
Alaska	—	—	18	14 days
Arizona	—	—	18	14 days
Arkansas	—	—	18	14 days
California	—	—	18	14 days
Colorado	—	—	18	14 days
Connecticut	50	40	18	—
Delaware	—	—	18	14 days
District of Columbia	—	—	18	—
Florida	—	—	18	—
Georgia	—	—	18	14 days
Hawaii	50	40 min.	18	14 days
Idaho	50	40	18	14 days
Illinois	—	—	18	14 days
Indiana	—	—	18	14 days
Iowa	50	40	18	14 days
Kansas	—	—	18	—
Kentucky	50	40 min.	18	14 days
Louisiana	—	—	18	14 days
Maine	—	—	—	14 days
Maryland	—	—	18	14 days
Massachusetts	50	40	18	14 days
Michigan	—	—	18	14 days
Minnesota	—	—	18	14 days
Mississippi	—	—	—	14 days
Missouri	50	40 min.	18	14 days
Montana	—	—	18	14 days
Nebraska	50	40	18	14 days
Nevada	—	—	18	14 days
New Hampshire	50	40 min.	18	—
New Jersey	50	40 min.	18	14 days
New Mexico	—	—	18	14 days
New York	—	—	18	14 days
North Carolina	—	—	18	—
North Dakota	—	—	18	14 days
Ohio	50	40	18	—
Oklahoma	—	—	18	14 days
Oregon	—	—	18	14 days
Pennsylvania	—	—	18	15 days
Rhode Island	—	—	18	14 days
South Carolina	—	—	18	14 days
South Dakota	50	40 min.	18	14 days
Tennessee	—	—	18	—
Texas	—	—	18	14 days
Utah	—	—	18	14 days
Vermont	—	—	18	14 days
Virginia	—	—	18	14 days
Washington	—	—	18	14 days
West Virginia	—	—	18	14 days
Wisconsin	50	40 min.	18	14 days
Wyoming	—	—	18	14 days

A “min.” pass figure is the 80% federal floor applied to a published question count, not a number the state itself prints. Every state page links the source it was checked against.

Common questions

Before you start a free CDL practice exam

Also useful: CDL endorsements explained · How we write questions · Link to QuizLane

A note on coverage: QuizLane publishes 600 reviewed CDL knowledge items and a source hub for every jurisdiction. Practice is for study—not an official exam replica, not ELDT, and not a pass guarantee. See our methodology.

Free CDL practice test for every state.

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