Louisiana CDL practice test
Published Updated Licensing sources checked:
How do I prepare for the Louisiana CDL knowledge test?
If you are preparing for your first permit, start with general knowledge and the official Louisiana instructions below. If your vehicle needs air brakes or combination vehicles, add those federal study sets; for hazardous materials, use the separate hazmat set. Compare the state’s published test rules with its current manual before you test. These practice sets teach federal topics and do not copy the state exam.
This page is study material. It is not the Louisiana state exam, and it does not copy state test questions. Check the official Louisiana pages below before you test.
| Your situation | Start with… |
|---|---|
| A quick first try | Take a 10-question warm-up |
| Ready for a longer attempt | Take the 50-question general knowledge exam |
| Need state rules or documents | Check the Louisiana application steps |
Louisiana official commercial driver manual (PDF) — link checked . Study its rules alongside our federal-standard bank. Our 50-question exam length is a study setting; use the official counts below for Louisiana.
Louisiana OMV’s CDL Driver Education page and linked CDL manual describe the knowledge tests for your class, vehicle and endorsements. The testing sections checked November 12, 2026 do not print question counts or a knowledge-test passing score. Those figures stay unknown here; the lengths and scores of our federal practice sessions are study settings.
Which tests do I need in Louisiana?
| Your vehicle or work | Required study and tests |
|---|---|
| All permit applicants | Start with general knowledge. Official requirements. Federal warm-up · Federal exam mode |
| Class A combination vehicle | Add combination vehicles. Official requirements. Federal warm-up · Federal exam mode |
| Vehicle with air brakes | Add air brakes and check restriction rules. Official requirements. Federal warm-up · Federal exam mode |
| Passenger vehicle | Add passenger testing. Official requirements. Federal warm-up · Federal exam mode |
| School bus | Study school bus and passenger topics; check state requirements. Official requirements. Federal warm-up · Federal exam mode |
| Tank vehicle | Add tank vehicle testing. Official requirements. Federal warm-up · Federal exam mode |
| Hazardous materials | Add hazmat testing and check approval and training steps. Official requirements. Federal warm-up · Federal exam mode |
| Doubles or triples | Add doubles and triples testing; check vehicle limits. Official requirements. Federal warm-up · Federal exam mode |
Check the current Louisiana agency instructions for your vehicle, endorsements and application. Our federal study sets do not copy state exam questions or supply unprinted exam figures.
Before booking the exam, check Louisiana CDL application steps and official fee lines.
| Test | Questions | To pass | Official source |
|---|---|---|---|
| General knowledge | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Combination vehicles, for Class A | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Air brakes, if applicable | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Passenger | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Tank vehicle | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| School bus | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Hazardous materials | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Doubles and triples | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
Louisiana language, permit and booking notes — checked 2026-11-12
The OMV-linked manual’s initial-issuance checklist prints a $15 application fee. That line is not a complete permit or CDL price; a separate knowledge-test price is not printed in the testing sections checked. Official source — checked .
OMV says the CLP holder is not eligible for the skills test during the first 14 days after initial permit issuance. Official source — checked .
While practicing, the permit holder must be accompanied and directly supervised by a CDL holder with the proper class and endorsements. Official source — checked .
OMV lists vehicle inspection, basic vehicle control and on-road driving as the skills-test segments. Federal knowledge practice does not complete those tests. Official source — checked .
For unknown figures, check with the Louisiana licensing agency. A blank count is not an estimate.
Federal study sets, not the Louisiana exam
Use general knowledge, air brakes, combination vehicles, and hazmat to study the federal topics. Finishing one of those sets does not mean you passed the Louisiana test.