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['CMV Parts and Maintenance']
['Rear bumper']
11/08/2025
State Info
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Minnesota has adopted 393.86 of the Federal Motor Carrier Safety Regulations (FMCSRs).
A truck-tractor and semitrailer combination with a semitrailer length longer than 50 feet whose frame or body extends more than 36 inches beyond the rear of its rearmost axle must not be operated on the highways of Minnesota unless equipped with a bumper or underride guard on the extreme rear of the frame or body.
The bumper or underride guard must:
