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The presence of air brakes does is not a determining factor in whether a CDL is required.
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Commercial motor vehicle (CMV) means a motor vehicle or combination of motor vehicles used in commerce to transport passengers or property if the motor vehicle is a:
The five federal exceptions to the medical card requirement are:
CDL holders only need to carry their medical card for 15 days after renewal. Non-CDL holders must carry their medical card.
In the United States, there is only an air brake RESTRICTION. If the CDL applicant does not take the written air brake exam when applying for a CDL or does not take the road test with an air brake equipped vehicle, the CDL will have a restriction “L” on the CDL, meaning vehicles without air brakes. This restriction only applies to vehicles that require a CDL. For example, a driver with a CDL and air brake restriction can still legally operate a box truck with a GVWR less than 26,001 lbs. with air brakes, because the box truck does not require a CDL.
Kansas has reciprocity agreements with Nebraska, Missouri, and Oklahoma. Farmers entering Kansas from non-reciprocity states will only qualify for the CDL exceptions if they meet the requirements of a covered farm vehicle.