Wisconsin · answered by Verika · verified against sources
When does a driver need a CDL?
A driver needs a CDL when operating a commercial motor vehicle (CMV) that meets the weight, size, or type criteria defined in 49 CFR 383.5 (e.g., vehicles over 26,001 lbs, designed to transport 16+ passengers, or transporting hazardous materials in quantities requiring placards). Employers cannot allow drivers to operate CMVs without a valid CDL or proper class/endorsements [2]. Specific CDL requirements apply for Class A/B upgrades, passenger/school bus endorsements, or hazardous materials endorsements, including mandatory training since Feb 7, 2022 [1,5,8].
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