← All states for CDL — Commercial Driver's License
CDL — Commercial Driver's License in Kentucky
KY Transportation Cabinet (license); Kentucky State Police (testing)
Real written-test languages: English
- Testing agency
- Kentucky State Police (KSP)
- Written-test languages
- English
- To pass
- 80% (General Knowledge 40/50) — federal §383.135
- Fee
- $3 NCIC background-check fee (collected by KYTC before the written test); HazMat endorsement test $5; license issuance fees to confirm
- Retake policy
- Retake once per day (24-hour wait after a failure); no retest fee for general knowledge
- Languages note
- KSP's multi-language knowledge test applies to the standard operator (non-commercial) test only; the CDL knowledge test is English (an oral English form is available; HazMat is English only with no oral option).
Languages, fees and rules change — confirm with the official source linked for each state. 待核 / 'To confirm' = not yet confirmed from an official source (shown honestly, never guessed). The 2025 federal English-Language-Proficiency action is roadside out-of-service enforcement, not a state test-language mandate; states set their own written-test languages (Texas and Florida moved to English-only in 2026).