Kansas CDL Study Guide
Kansas issues Commercial Driver Licenses through the Kansas Department of Revenue (KDOR), Division of Vehicles. Applicants study the official Kansas CDL Handbook (March 2025 version), pass written knowledge tests for a Commercial Learner Permit, complete federal Entry-Level Driver Training, and take the road skills test at a state office or approved third-party site.
Key Kansas numbers
- Minimum age (intrastate): 18
- Minimum age (interstate or hazmat): 21
- CLP hold before skills test: at least 14 days
- General Knowledge passing score: 80%
- General Knowledge test: ~50 questions
- Air Brakes test: ~25 questions (required if your vehicle has air brakes)
- Combination Vehicles test: ~20 questions (required for Class A)
Topics on the Kansas General Knowledge test
- Vehicle inspection (pre-trip, en-route, post-trip)
- Driving safely (speed management, space management, hazard perception)
- Transporting cargo safely
- Air brakes (if your vehicle is air-braked)
- Combination vehicles (Class A)
If you fail a test
If you fail a Kansas CDL knowledge or skills test, you can retake it at a Division of Vehicles office. Check with the local office for current waiting periods between attempts.
Frequently asked questions
Who issues CDLs in Kansas?
The Kansas Department of Revenue (KDOR) Division of Vehicles issues all Commercial Driver Licenses.
How much does a Kansas CDL cost?
$13 for the Commercial Learner Permit and $26 for the CDL itself (6-year credential). Endorsements are about $10 each.
What is the passing score on the Kansas CDL General Knowledge test?
You must answer at least 40 of 50 questions correctly (80%).
How long must I hold the Kansas CLP?
At least 14 days before you can take the skills test.
Is ELDT required in Kansas?
Yes. New CDL applicants and drivers upgrading class or adding HAZMAT, School Bus, or Passenger endorsements must complete federal Entry-Level Driver Training.
Where do I take the CDL skills test in Kansas?
At designated state driver license offices or approved third-party CDL testing sites. The Division of Vehicles lists current locations.
Free practice
Start a Kansas General Knowledge quiz →
Sources: Kansas Department of Revenue - Commercial Driveru0027s License hub Kansas CDL Handbook (March 2025 PDF) Kansas DOR - Entry-Level Driver Training Kansas DOR - CDL Skills Testing Offices