Oklahoma CDL practice test
Published Updated Licensing sources checked:
How do I prepare for the Oklahoma CDL knowledge test?
If you are preparing for your first permit, start with general knowledge and the official Oklahoma instructions below. If your vehicle needs air brakes or combination vehicles, add those federal study sets; for hazardous materials, use the separate hazmat set. Compare the state’s published test rules with its current manual before you test. These practice sets teach federal topics and do not copy the state exam.
This page is study material. It is not the Oklahoma state exam, and it does not copy state test questions. Check the official Oklahoma pages below before you test.
| Your situation | Start with… |
|---|---|
| A quick first try | Take a 10-question warm-up |
| Ready for a longer attempt | Take the 50-question general knowledge exam |
| Need state rules or documents | Check the Oklahoma application steps |
Oklahoma official commercial driver manual (PDF) — link checked . Study its rules alongside our federal-standard bank. Our 50-question exam length is a study setting; use the official counts below for Oklahoma.
Service Oklahoma directs first-time applicants to its CDL Driver Manual for general knowledge and separate vehicle and endorsement tests. Section 1.1.1 and the application page checked November 12, 2026 do not print knowledge-test question counts or a passing score. We leave those figures unknown instead of borrowing another state’s exam length or a training assessment score.
Which tests do I need in Oklahoma?
| Your vehicle or work | Required study and tests |
|---|---|
| All permit applicants | Start with general knowledge. Official requirements. Federal warm-up · Federal exam mode |
| Class A combination vehicle | Add combination vehicles. Official requirements. Federal warm-up · Federal exam mode |
| Vehicle with air brakes | Add air brakes and check restriction rules. Official requirements. Federal warm-up · Federal exam mode |
| Passenger vehicle | Add passenger testing. Official requirements. Federal warm-up · Federal exam mode |
| School bus | Study school bus and passenger topics; check state requirements. Official requirements. Federal warm-up · Federal exam mode |
| Tank vehicle | Add tank vehicle testing. Official requirements. Federal warm-up · Federal exam mode |
| Hazardous materials | Add hazmat testing and check approval and training steps. Official requirements. Federal warm-up · Federal exam mode |
| Doubles or triples | Add doubles and triples testing; check vehicle limits. Official requirements. Federal warm-up · Federal exam mode |
Check the current Oklahoma agency instructions for your vehicle, endorsements and application. Our federal study sets do not copy state exam questions or supply unprinted exam figures.
Before booking the exam, check Oklahoma CDL application steps and official fee lines.
| Test | Questions | To pass | Official source |
|---|---|---|---|
| General knowledge | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Combination vehicles, for Class A | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Air brakes, if applicable | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Passenger | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Tank vehicle | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| School bus | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Hazardous materials | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
| Doubles and triples | Not printed on the pages checked | Not printed on the pages checked | State sourceState source |
Oklahoma language, permit and booking notes — checked 2026-11-12
Service Oklahoma’s four-year credential table prints application and credential fees separately: Class A $25 and $56.50; Class B $15 and $56.50; Class C $15 and $46.50. These are credential fee lines, not a separate knowledge-test price, which is not printed on the pages checked. Official source — checked .
After the required written tests, hold the CLP for 14 full days. Service Oklahoma says the skills test can be taken on the 15th day. Official source — checked .
The application page directs applicants to take the vision and written test in person at a Service Oklahoma Licensing Office. Official source — checked .
Service Oklahoma says ELDT can be completed before the skills test and recommends completing it before the written test. Its document checklist requires ELDT completion for hazmat or before the skills test, subject to the listed exemptions. Official source — checked .
For unknown figures, check with the Oklahoma licensing agency. A blank count is not an estimate.
Federal study sets, not the Oklahoma exam
Use general knowledge, air brakes, combination vehicles, and hazmat to study the federal topics. Finishing one of those sets does not mean you passed the Oklahoma test.