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Home Chapters 5.0 5.1 Rear-End Protection (393.86) 5.1.9 Rear-End Protection (393.86)
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Note:

5.1.9 Rear-End Protection (393.86)

Each trailer and semitrailer must have rear impact guards (bumpers) or other devices that prevent another vehicle from riding underneath, except for tractors, pole trailers, and driveaway–towaway vehicles. Rear-impact guards on certain trailers manufactured on or after January 26, 1998, must be permanently marked or labeled and meet standards in 49 CFR Sections 571.223 and 571.224.

See 49 CFR 393.86 for complete regulations and exceptions regarding rear-end protection.
Disclaimer
This publication is distributed by the U.S. Department of Transportation, Federal Motor Carrier Safety Administration (FMCSA). It is meant to serve as a guide only and the Agency does not assume responsibility for any omissions, errors, or ambiguity contained herein. The contents may not be relied upon as a substitute for the Agency’s published regulations.

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