LA · CDL Class B

Louisiana Class B CDL Practice Questions

This Louisiana Class B CDL practice page is built around the 100-question bank saved for this run. Its six modules are general knowledge, air brakes, hazardous materials, tank vehicles, passenger vehicles, and school buses, with questions on inspection, braking systems, cargo, passenger safety, hazardous conditions, tanker dynamics, operating rules, and licensing responsibilities. Louisiana Class B is the heavy straight-vehicle commercial class for a single vehicle rated at 26,001 pounds or more. The specialty modules are conditional rather than tests every Class B applicant automatically takes. Applicants should match endorsements and tests to the actual vehicle, brake system, cargo, and work they plan to perform. First-time Class B applicants also need the applicable knowledge tests, a commercial learner's permit, required ELDT, the 14-day waiting period, and successful CDL skills testing.

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Every test draws only from the Louisiana CDL Class B question bank.

20questionsStart Class B test → 40questionsStart Class B test → 60questionsStart Class B test → 80questionsStart Class B test →

LICENSING GUIDE

What to know before you test

Use this overview together with the latest official guidance linked below.

Confirm that Louisiana Class B matches the vehicle you plan to drive

Louisiana OMV defines Class B as a commercial heavy straight-vehicle license. It permits operation of a single vehicle with a gross vehicle weight rating of 26,001 pounds or more, plus vehicles in lower classes when any required endorsements are held. This mixed bank also includes air-brake, hazardous-materials, tank, passenger, and school-bus material for broad preparation, but those privileges are conditional. Passenger operation requires the appropriate P endorsement, school-bus operation requires the school-bus endorsement and associated passenger qualification, tank operation requires N when applicable, and placardable hazardous-materials work requires the H or X credential as appropriate. Match your study plan to the equipment and work you expect to perform.

Prepare for Louisiana knowledge testing and the commercial learner permit

Louisiana's CLP policy requires applicants to pass the knowledge examinations needed for the class and privileges they seek before the permit is issued. A Louisiana CLP applicant must be at least 18, and an applicant under 21 must certify intrastate operation on the CDL Supplemental Form. The CLP is issued for up to 180 days and may be extended for another 180 days when additional training time is needed, but the total term cannot exceed one year from initial issuance. After the CLP is first issued, the holder is not eligible for the CDL skills test during the first 14 days. CLP endorsements are limited to N, P, and S and carry corresponding restrictions while the driver is learning.

Complete required documents and ELDT before the skills test

Louisiana requires proof of Louisiana residency, the completed CDL Supplemental Form, and a current Medical Examiner's Certificate as part of the CLP documentation, along with a valid Louisiana driver license and the other eligibility requirements in state policy. Federal Entry-Level Driver Training rules apply to drivers obtaining a Class B CDL for the first time and to first-time H, P, or S endorsements unless an exception applies. Louisiana's CLP policy directs covered applicants to complete approved ELDT before the skills test and, for first-time hazardous-materials applicants, before the H knowledge test. Training completion is recorded through the federal Training Provider Registry and is separate from practice-question performance.

Use representative equipment for Class B and endorsement skills testing

Louisiana CDL testing evaluates vehicle inspection, basic vehicle control, and on-road driving. The vehicle used for testing matters because equipment and configuration can create restrictions on the issued CDL. For passenger and school-bus privileges, the applicant must satisfy the endorsement-specific knowledge and skills requirements in the appropriate representative vehicle; a school-bus skills test can satisfy passenger-vehicle skills requirements when both endorsements are obtained together under Louisiana policy. Air-brake privileges likewise require the appropriate knowledge test and testing in a commercial vehicle equipped with air brakes to avoid an air-brake restriction. Written practice should therefore be paired with supervised, vehicle-specific preparation and any required ELDT.

REQUIREMENTS OVERVIEW

Louisiana CDL Class B requirements

Requirements depend on the applicant and can change. Verify each item with the cited agency.

age

Louisiana Class B CDL and CLP applicants

Louisiana requires CLP applicants to be at least 18 years old. Class B commercial operation is intrastate at 18 or older and interstate at 21 or older; applicants under 21 must certify intrastate operation.

documents

Applicants for a Louisiana-issued CLP leading to Class B

Louisiana requires proof of Louisiana residency, a completed CDL Supplemental Form (DPSMV2211), and a current Medical Examiner’s Certificate (MCSA-5876), along with the other CLP eligibility documentation required by state policy.

tests

Louisiana Class B applicants

Applicants must pass the knowledge examinations required for their class, brake system, and endorsements before CLP issuance, then complete the CDL skills-test process after the waiting period and any applicable ELDT.

passing

Louisiana CDL knowledge-test applicants

Louisiana law requires at least 80 percent correct on each commercial-driver knowledge examination.

applicability

Louisiana Class B applicants using this mixed practice bank

This saved bank covers general knowledge, air brakes, hazardous materials, tank vehicles, passenger, and school-bus material. Specialty modules apply according to the vehicle, brake system, cargo, and endorsements sought; they are not universal requirements for every Class B applicant.

OFFICIAL REFERENCES

Sources for this guide

Open the current source before relying on licensing details.

Policy 1.00 Class of Licenses and Age Requirements | Louisiana Office of Motor VehiclesRevised August 1, 2026: Class B heavy straight vehicle definition and intrastate/interstate age requirementsOpen source ↗ Policy 1.01 Commercial Learner’s Permit | Louisiana Office of Motor VehiclesRevised April 8, 2026: age, intrastate certification, knowledge exams, ELDT, 14-day wait, endorsements, permit term, and required documentsOpen source ↗ Endorsements | Louisiana Office of Motor VehiclesH, N, P, S and X commercial endorsement descriptions and examination prerequisitesOpen source ↗ Louisiana CDL Examination Requirements | Louisiana Office of Motor VehiclesPassenger, school-bus and air-brake examination and representative-vehicle requirementsOpen source ↗ Commercial Driver’s License Manual | Louisiana Office of Motor VehiclesSections 1, 2, 4, 5, 8, 9 and 10 covering commercial operation, passengers, air brakes, tanks, hazardous materials and school busesOpen source ↗ Louisiana Revised Statutes 32:408 | Louisiana State LegislatureCommercial driver knowledge-test passing standard and CDL testing provisionsOpen source ↗ Entry-Level Driver Training (ELDT) | Federal Motor Carrier Safety AdministrationFederal ELDT applicability for first-time Class B and first-time H, P or S endorsementsOpen source ↗