CDL Practice Test 2026 - Free CDL Tests by State
Free · General Knowledge, Air Brakes & more
CDL Practice Test
Pass your Commercial Learner's Permit (CLP) exams with free timed practice tests for every CDL section and endorsement.
CDL knowledge tests
| Test | Who needs it |
|---|---|
| General Knowledge | All CDL applicants |
| Air Brakes | Vehicles with air brakes |
| Combination Vehicles | Class A |
| Hazardous Materials (H) | Hazmat endorsement |
| Tanker (N) | Liquid or gas tanks |
| Passenger (P) / School Bus (S) | Bus drivers |
| Doubles/Triples (T) | Multiple trailers |
Steps to get your CDL
- Get a DOT medical card.
- Pass the knowledge tests to get your CLP.
- Complete Entry-Level Driver Training (ELDT) with a registered provider.
- Hold your CLP for at least 14 days.
- Pass the skills test (pre-trip, basic control, road test).
CDL practice test by state
ALAlabamaAKAlaskaAZArizonaARArkansasCACaliforniaCOColoradoCTConnecticutDEDelawareDCDistrict of ColumbiaFLFloridaGAGeorgiaHIHawaiiIDIdahoILIllinoisINIndianaIAIowaKSKansasKYKentuckyLALouisianaMEMaineMDMarylandMAMassachusettsMIMichiganMNMinnesotaMSMississippiMOMissouriMTMontanaNENebraskaNVNevadaNHNew HampshireNJNew JerseyNMNew MexicoNYNew YorkNCNorth CarolinaNDNorth DakotaOHOhioOKOklahomaOROregonPAPennsylvaniaRIRhode IslandSCSouth CarolinaSDSouth DakotaTNTennesseeTXTexasUTUtahVTVermontVAVirginiaWAWashingtonWVWest VirginiaWIWisconsinWYWyoming
Frequently asked questions
How old do you have to be to get a CDL?
18 for intrastate driving and 21 for interstate driving or hazmat.
How many questions are on the CDL General Knowledge test?
Most states use 50 questions and require 80% to pass.
PracticePermit.us is an independent study resource and is not affiliated with any state DMV or government agency.