Checked against official Louisiana sources on Oct 7, 2026
Louisiana CDL practice test
Every state needs at least 80% on each CDL written test, and Louisiana follows the same federal rule. Below are the fees, ages and rules we checked against the official Louisiana source, and a free practice test.
FirstTry CDL is not affiliated with any DMV, FMCSA or government agency. Practice questions are exam-style questions built from the official CDL manual, not actual test questions.
Louisiana CDL facts
| What | What Louisiana says | Source |
|---|---|---|
| CLP minimum age | You must be 18 or older to get a CLP | Official page |
| CDL minimum age | Class A, B and C: 18 or older for intrastate driving and 21 or older for interstate driving | Official page |
| Hazmat minimum age | The H endorsement is issued only to people 21 or older | Official page |
| Application fee | $15, due at the time of application | Official page |
| CDL license fee | $61.50 for a basic Class A, B or C CDL or renewal ($76.50 for bona fide residents of the city of New Orleans), plus the $15 application fee | Official page |
| Endorsement fee | $7.50 for each endorsement to a basic CDL | Official page |
| CLP validity | Up to 180 days, with a free extension of another 180 days if you need more training time. A CLP cannot last more than 360 days from the first issue | Official page |
| CDL process time limit | You must finish the knowledge tests, skills test and CDL issue within one year of the first CLP issue. After that, all scores expire, the $15 application fee is lost, and you restart | Official page |
| Knowledge test passing score | 80 percent or higher on every CDL knowledge exam, including endorsement exams | Official page |
| Knowledge test list | General knowledge, passenger transport, air brakes, combination vehicles, hazardous materials, tank vehicle, doubles and triples, and school bus | Official page |
| Knowledge test order | CDL knowledge exams can be taken in any order | Official page |
| Knowledge test retake | If you fail, you may retake the exam once on the same day, if time allows | Official page |
| Test languages | CDL knowledge tests on the automated system are available in English, French and Spanish. Oral exams may be available on request | Official page |
| Interpreters | Interpreters are not allowed for CDL exams. You may test in another language the automated system provides | Official page |
| CLP holding period | A CLP holder cannot take the CDL skills test in the first 14 days after the CLP is first issued | Official page |
| Skills test | Skills tests (pre-trip inspection, basic controls and road driving) are given by a CDL third-party examiner. After you pass, the examiner tells you when to go back to the OMV for your CDL | Official page |
| Endorsements | T doubles and triples, P passenger, N tank, H hazmat, X tank and hazmat, M motorcycle, S school bus | Official page |
| Endorsements on a CLP | Only N, P and S can be put on a CLP | Official page |
| Endorsement skills test | Passenger and school bus endorsements need a skills test in a passenger or school bus. Tank, hazmat and doubles/triples do not need a skills test | Official page |
| School bus endorsement | You must have the passenger endorsement first, or pass both knowledge exams. A skills test in a school bus covers both if you get them together | Official page |
| ELDT | You may need entry level driver training before the skills test. A first time hazmat endorsement needs ELDT before the hazmat knowledge test | Official page |
| Hazmat TSA check | Every hazmat applicant needs a TSA security threat assessment. Louisiana accepts one done within the last 6 months. The fingerprint fee is $85.25 | Official page |
| Hazmat license expiry | A hazmat CDL expires on the same date as the TSA assessment on file | Official page |
| Expired or downgraded CDL | If your CDL has been expired or downgraded more than one year, you must retake the knowledge exams. After two years you must also pass the skills test | Official page |
| Out of state transfer | A valid Class A, B or C CDL from another state does not need the written or skills test, except the hazmat knowledge test | Official page |
| Cheating | The exam stops, earlier scores are canceled, the $15 application fee is lost, and you must wait one business day to reschedule. If you do not finish all written tests within 30 days, your CDL status is disqualified | Official page |
| Non-domiciled CLP and CDL | Offered only at an OMV field office. Not available to people domiciled in Canada or Mexico, and not eligible for a hazmat endorsement | Official page |
Fees and rules change. Confirm on the official Louisiana CDL page before you go. Read the official Louisiana CDL manual.
CDL test formats
We show the national defaults for question counts and time limits. Check the official Louisiana manual for anything that differs.
| Test | Questions | To pass | Typical time |
|---|---|---|---|
| General Knowledge | 50 | 40 (80%) | About 60 minutes |
| Air Brakes | 25 | 20 (80%) | 25 to 30 minutes |
| Combination Vehicles | 20 (25 questions in some states) | 16 (80%) | 20 to 25 minutes |
| Hazardous Materials | 30 | 24 (80%) | 30 to 40 minutes |
| Tanker | 20 | 16 (80%) | 20 to 25 minutes |
| Passenger | 20 | 16 (80%) | 20 to 25 minutes |
| School Bus | 20 (25 questions in some states) | 16 (80%) | About 25 minutes |
| Doubles/Triples | 20 | 16 (80%) | About 20 minutes |
Practice any of them: all CDL practice tests.