Texas CDL Permit Practice Test: What to Expect
The Texas CDL permit knowledge test is 50 questions on general knowledge, requiring 40 correct (80 percent) to pass, and it’s taken in a fixed order set by Texas DPS: Texas Commercial Rules, General Knowledge, Combination (Class A only), Air Brakes if applicable, then any endorsements. A Commercial Learner’s Permit application costs $25 and, once issued, the CLP is valid for 180 days.
Texas changed a major rule for 2026: effective June 1, 2026, Texas DPS administers all CDL knowledge examinations in English only, and Spanish-language versions of the tests are no longer offered (Texas DPS, Commercial Driver License). Applicants who can’t demonstrate sufficient English proficiency during testing or issuance aren’t eligible for a Texas CDL or CLP, per federal rule 49 CFR 391.11.
What does the CLP knowledge test actually cover?
The Texas CLP knowledge test checks the same driver-safety fundamentals every CDL applicant nationwide has to know: vehicle inspection, basic vehicle control, hours-of-service limits, hazard perception, cargo handling basics, and accident procedures. The material comes directly from the Texas Commercial Motor Vehicle Driver’s Handbook (DL-7C), which Texas DPS publishes as a free PDF and which is the actual source the test questions are written from (Texas DPS, Texas CMV Driver’s Handbook).
What order are the knowledge exams taken in?
Texas requires the exams in a fixed sequence, and you can’t skip ahead: Texas Commercial Rules first, then General Knowledge, then Combination Vehicles (Class A applicants only), then Air Brakes if your vehicle has them, then any endorsement tests you need (Texas DPS, How Do I Apply for a Commercial Driver License?). Failing the combination vehicle test blocks a Class A CLP or CDL outright, while failing only the air brakes portion typically results in an air brake restriction rather than blocking the whole application, under 49 CFR 383.135.
How much does a Texas CDL permit and license actually cost?
Texas DPS publishes a flat fee schedule for every step, and the total depends mostly on whether the CDL includes a hazmat endorsement, which changes both the fee and the renewal cycle.
| Item | Fee | Notes |
|---|---|---|
| Commercial Learner’s Permit (CLP), original | $25 | Valid 180 days from issuance |
| CLP renewal | $25 | Must renew before expiration |
| CDL, new or renewal (age 18-84) | $97 | Expires in 8 years |
| CDL with Hazardous Materials Endorsement | $61 | Expires in 5 years, shorter cycle tied to TSA recertification |
| Replacement CDL or CLP | $11 | Current expiration date does not change |
| CDL, age 85 and older | $26 | Expires after 2 years |
(Texas DPS, Driver License Fees, accessed July 2026: https://www.dps.texas.gov/section/driver-license/driver-license-fees). These are state fees only; behind-the-wheel training, the DOT medical exam, and any third-party skills testing fees are separate and vary by provider.
Do you need a CLP before applying for a full Texas CDL?
Yes, in almost every case. Texas requires a CLP first if you’re applying for a CDL for the first time, upgrading between classes, or adding a passenger or school bus endorsement to an existing CDL. Once issued, you must hold the CLP for at least 14 days before taking your skills test, which gives you time to get supervised behind-the-wheel practice with a qualified CDL holder riding along (Texas DPS, How Do I Apply for a Commercial Driver License?).
The CLP itself is valid for 180 days or until your base Texas driver license expires, whichever comes first, and it can be renewed once, up to 30 days before expiration, without retaking the knowledge exams.
What documents do you need to apply?
Texas requires proof of identity, U.S. citizenship or lawful presence, and a Social Security number before issuing a CLP; a CDL or CLP cannot be issued without a verifiable SSN. You’ll also self-certify your medical status using one of three forms (CDL-4, CDL-5, or CDL-10) and provide the corresponding Medical Examiner’s Certificate. If you own a vehicle, current Texas vehicle registration and proof of insurance are required as well; if you don’t own one, you sign a statement affirming that instead.
Do you need Entry-Level Driver Training before the skills test?
Yes. Once you’ve held your CLP for the required 14 days, you must complete Entry-Level Driver Training (ELDT) through a provider listed on FMCSA’s Training Provider Registry before you’re eligible to take the CDL skills test, a federal requirement that applies to every first-time Class A or B CDL applicant and to anyone adding a hazmat, passenger, or school bus endorsement for the first time (FMCSA, Entry-Level Driver Training).
Run through the CDL Practice Hub Texas CDL practice quiz to check your general knowledge score against the 80 percent bar before you schedule your DPS appointment, since the practice format under time pressure catches gaps a straight read-through of the manual won’t.
FAQ
How many questions are on the Texas CDL general knowledge test, and what score do I need? 50 questions, with 40 correct (80 percent) required to pass, and you have one hour to complete it, per Texas DPS testing information.
How much does a Texas CDL permit cost? The Commercial Learner’s Permit costs $25, whether it’s an original application or a renewal, according to the Texas DPS fee schedule.
Can I take the Texas CDL test in Spanish? No, not as of June 1, 2026. Texas DPS now administers all CDL knowledge exams exclusively in English, in line with the federal English-proficiency requirement in 49 CFR 391.11. Spanish-language knowledge tests were discontinued as of that date.
How long is a Texas CLP valid, and can I extend it? 180 days from issuance, or until your base driver license expires if that’s sooner. It can be renewed one time, up to 30 days before it expires, without needing to retake the knowledge tests.
Do I need to hold the CLP for a minimum amount of time before the skills test? Yes, 14 days minimum, which gives you time to get supervised practice hours before Texas DPS will schedule your skills test.