CLP knowledge test preparation
CDL Permit Preparation — CLP Knowledge Test
PASS YOUR PERMIT TEST. START YOUR CDL JOURNEY.
The CLP (Commercial Learner's Permit) is the first step toward your CDL. Diesel Xtrem Pro's online courses prepare you for the Texas DPS knowledge tests — General Knowledge, Air Brakes, Combination Vehicles, and endorsements.
What it is
CDL permit preparation covers the knowledge required to pass the Texas DPS CLP knowledge tests. The CLP is required before you can take the CDL skills test. Diesel Xtrem Pro provides online study courses and practice tests for all required knowledge areas.
Who it's for
Anyone starting the CDL process in Texas. The CLP is the first official step — you must pass the knowledge test at DPS before you can begin behind-the-wheel preparation.
What's included
- General Knowledge study course
- Air Brakes study course
- Combination Vehicles study course (Class A)
- Endorsement knowledge preparation
- Practice tests with answer explanations
- Weak-area identification and review
- Progress tracking
- Study from phone, tablet, or computer
Available:
Online — Study from your phone, tablet, or computerHow it works
01
Start online
Access General Knowledge, Air Brakes, and Combination Vehicles study courses immediately.
02
Study & practice
Complete study modules and take practice tests to build confidence.
03
Pass at DPS
Take your CLP knowledge tests at a Texas DPS location.
04
Begin BTW prep
With your CLP in hand, schedule in-person behind-the-wheel preparation.
Pricing
CDL permit preparation courses are available individually or as part of a full program bundle. View our pricing page for current rates.
Frequently asked questions
Your next move starts here
Request information
Fill out the form below and we'll be in touch. Or call us directly at (214) 817-0197.