New Jersey CDL permit practice test

A New Jersey Class A learner permit (CLP) takes three knowledge tests: General Knowledge, which every applicant takes; Combination Vehicles; and Air Brakes, if your truck has air brakes (New Jersey CDL Manual, March 2025, 1.1.1, p. 1-5). New Jersey MVC requires 80% to pass.

Key facts

Class A knowledge testsGeneral Knowledge, Combination, and Air Brakes if your vehicle has them
Pass mark80% on each test
Retest ruleWait 7 days before retaking a knowledge test
Test receipt$125, valid 180 days
Hold the CLP before the road testAt least 14 days
Test scores good for360 days

The tests

The 3 knowledge tests for a Class A permit

See practice questions with answers and manual pages

Try one

General Knowledge · Seeing

Why must you make allowances when using a convex ("fisheye") mirror?

Tap an answer to see the explanation and the manual page.

Questions drivers ask

What score do you need to pass the New Jersey CDL knowledge test?
80%. NJ MVC gives the CDL knowledge tests as multiple-choice tests on a computer at a Driver Testing Center, and you need an appointment.
Source: NJ MVC, CDL Frequently Asked Questions
What tests do I need for a Class A CDL permit in New Jersey?
General Knowledge, which every applicant takes; Combination Vehicles, which you need to drive combination vehicles; and Air Brakes, if your vehicle has air brakes. Skip or fail Air Brakes and your CLP or CDL carries the L restriction, no air brakes.
Source: New Jersey CDL Manual (March 2025), pp. 1-3 and 1-5
How many questions are on the New Jersey CDL permit test?
Neither the New Jersey CDL Manual nor NJ MVC's CDL FAQ publishes question counts. The FAQ says the tests are multiple choice on a computer and that you need 80% to pass. Counts quoted by practice sites are unofficial.
Source: NJ MVC, CDL Frequently Asked Questions; New Jersey CDL Manual (March 2025), p. 1-5
How long do I have to wait to retake the New Jersey CDL knowledge test?
Seven days. There is no limit on attempts while your test receipt is valid, which is 180 days; after that it must be renewed for $125. You must pass General Knowledge before taking any endorsement test.
Source: NJ MVC, CDL Frequently Asked Questions
How much does the New Jersey CDL test receipt cost?
$125, and it is non-refundable. The test receipt is valid for 180 days and must be renewed for $125 when it expires. A duplicate test receipt costs $3 and a duplicate CLP costs $11.
Source: NJ MVC, CDL Frequently Asked Questions
How long must I hold a New Jersey CLP before the CDL road test?
At least 14 days after you receive your Commercial Learners Permit (CLP). If you fail the road test, you must wait at least 14 days to be retested.
Source: NJ MVC, CDL Frequently Asked Questions
How long is a New Jersey CLP valid?
Six months (180 days). After that you must renew your CLP and your test receipt.
Source: NJ MVC, CDL Frequently Asked Questions
How long are New Jersey CDL test scores good for?
360 days, for the written, vision and road tests.
Source: NJ MVC, CDL Frequently Asked Questions
Can I take the New Jersey CDL knowledge test in Spanish?
Yes. Every CDL knowledge test is offered in English or Spanish except the HazMat endorsement test, which is English only. Interpreters are not allowed and audio tests are not available.
Source: NJ MVC, CDL Frequently Asked Questions
How old do you have to be for a New Jersey CLP?
At least 18. Under 21 you can drive only within New Jersey (intrastate) and must select commerce category 3 or 4 on the CDL Holder Self-Certification form.
Source: NJ MVC, CDL Frequently Asked Questions
Do I need ELDT before the New Jersey CDL permit test?
Not for Class A. First-time Class A, B and C applicants must finish federal Entry-Level Driver Training before the skills test. HazMat is the exception: its training comes before the HazMat knowledge test.
Source: NJ MVC, CDL Frequently Asked Questions; FMCSA ELDT rule, 49 CFR Part 380

Sources

New Jersey Commercial Driver License Manual, version March 2025, New Jersey Motor Vehicle Commission. Page references are to its printed page numbers. CDL Mile is independent and not affiliated with the NJ MVC.

Updated for the March 2025 New Jersey CDL manual. Last checked November 5, 2026.

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