Ohio CDL practice test
The CDL general knowledge test follows federal standards, so these questions apply in Ohio just as they do nationwide — it is the same test that earns your OH commercial learner's permit (CLP). Below the test you'll find the Ohio-specific steps to actually get licensed.
In a highway work zone, you should:
Ohio endorsement tests
General knowledge is the test above. Each endorsement has its own written test and its own question pool — practise the ones your job needs, with the OH steps on each page.
Getting your CDL in Ohio
In Ohio, apply through the state licensing agency (OH DMV / DOT). The core steps are the same across states:
- Get a valid OH driver's license and provide required identity documents.
- Pass the DOT physical with a certified medical examiner and carry your medical card.
- Pass the written knowledge tests (general knowledge plus any endorsements you need).
- Hold your commercial learner's permit (CLP) for the required waiting period.
- Complete Entry-Level Driver Training (ELDT) with a registered provider, if required.
- Pass the skills test — pre-trip inspection, basic controls, and road test.
Exact fees, permit hold times, and document requirements are set by Ohio. Confirm the current details with the OH licensing agency before you go.
What is different in Ohio
Licensing in Ohio runs through the Ohio Bureau of Motor Vehicles. The part that catches people out is not the test — it is the medical certificate, because the way it reaches the state changed in 2025.
Since 23 June 2025 FMCSA electronically transmits exam results and variance information for commercial learner’s permit applicants and CDL holders to the Ohio BMV, and drivers are no longer required to submit a paper medical examiner’s certificate. Examiners report every commercial driver exam to the National Registry by midnight of the next calendar day.
Self-certification is still your job
The medical certificate now arrives on its own; the self-certification does not. Every CDL holder must self-certify their type of commercial driving in order to be issued and to keep a CDL, and that is a separate step from the exam.
Ohio moved to electronic medical certification on 23 June 2025. The Ohio DOT physical page has the rest — what the exam checks, what happens if your certification lapses, and the BMV contacts worth having.
Official state sources: Ohio BMV — CDL classes and medical certification· reviewed 2026-08-22·Ohio BMV — FMCSA update (medical certification)· reviewed 2026-08-22
Don't forget the DOT physical
A valid medical certificate is required before you can be licensed. Read our DOT physical guide to know what the exam checks and how to pass it the first time.