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CDL — Commercial Driver's License in Wisconsin

Wisconsin DOT, Division of Motor Vehicles

Real written-test languages: English · American Sign Language · Burmese · Croatian · Polish · Russian · Serbian · Spanish

Testing agency: Wisconsin DOT (DMV)
Written-test languages: English · American Sign Language · Burmese · Croatian · Polish · Russian · Serbian · Spanish
To pass: 80% or more correct
Fee: Free (knowledge tests at a DMV service center)
Retake policy: Retake no sooner than next day; same test max 5×/year; after 5 fails need DMV permission
Languages note: 8 languages for CDL General Knowledge/Air Brakes/Combination/Doubles-Triples/Passenger/Tanker; HazMat and School Bus are English only. (Chinese/Hmong/Somali are non-commercial only.)

Schedule / register →Official source ↗

🎯 Practice for this exam

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).