New Jersey CDL Air Brakes practice test
The Air Brakes test covers Section 5 of the New Jersey CDL Manual and is required if your vehicle has air brakes (1.1.1, p. 1-5). Skip or fail it and your CLP or CDL carries the L restriction, no air brakes (p. 1-3); New Jersey MVC requires 80% to pass.
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Key facts
| Pass mark | 80% on this test | NJ MVC CDL FAQ |
|---|---|---|
| Who takes it | Anyone whose vehicle has air brakes, including air over hydraulic | NJ CDL Manual p. 1-5 |
| Covers | Section 5: air brake parts, dual systems, inspection, use | NJ CDL Manual Section 5 |
| If you skip it | Restriction L: no air-brake vehicles | NJ CDL Manual p. 1-3 |
Topics
What the Air Brakes test covers
Questions drivers ask
- What is on the New Jersey CDL air brakes test?
- Section 5 of the New Jersey CDL Manual: the parts of an air brake system, dual air brake systems, inspecting air brakes and using air brakes. You must take it if your vehicle has air brakes, including air over hydraulic brakes.
- Source: New Jersey CDL Manual (March 2025), Section 5 and p. 1-5
- What does the L restriction mean on a New Jersey CDL?
- No air brakes: you may not drive a commercial vehicle with any type of air brakes. It is added if you skip or fail the air brakes knowledge test, or take the skills test in a vehicle without air brakes.
- Source: New Jersey CDL Manual (March 2025), p. 1-3
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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