Rear Bumper/Rear Underride Guards - Maryland

Maryland has adopted 393.86 of the Federal Motor Carrier Safety Regulations (FMCSRs).

In Maryland, every truck with a gross vehicle weight rating (GVWR) over 10,000 pounds and every trailer or semitrailer with a gross weight of 3,000 pounds or more which has a clearance at the rear end of more than 30 inches from the ground when empty, must be equipped with a permanent rear bumper or metal frame attached to the underside of the rear of the truck.

The rear bumper or frame:

• May not be any wider than the width of the truck,
• May not be more than 30 inches above the highway when moving, and
• Must be constructed of heavy gauge steel.

The maximum distance from the widest part of the vehicle at the rear to the bumper or metal frame may not exceed 18 inches.

Related information

• Rear Bumper ezExplanation

Citations

• COMAR 11.14.04.08
• Federal regulation 49 CFR 393.86