New bumper standards to impact carriers, manufacturers
New manufacturing standards for rear-impact guards on trailers will mean safer roads but higher costs for motor carriers and manufacturers.
The new standards mirror those in Canada and are designed to better protect car drivers by making trailer and semitrailer bumpers stronger and more energy-absorbing.
The revisions to 49 CFR Part 571 go into effect in 2023, with compliance required by July 15, 2024.
The changes apply only to trailer and semitrailer manufacturers and do not directly affect motor carriers.
Safety advocates who petitioned for the rule change said it falls far short of what’s needed and will not measurably improve highway safety. Indeed, the DOT estimates that 94 percent of new trailers already have guards that comply with the new standards.
What’s NOT included
The new rules:
- Do not apply to straight trucks, they apply only to new trailers and semitrailers rated at 10,000 pounds or more (the DOT says it may propose new conspicuity tape requirements for straight trucks as a way to help prevent rear underride).
- Do not apply retroactively, so existing trailers do not need retrofitting.
- Do not amend the labeling requirement, so manufacturers will still be required to place a label on their rear-impact guards to certify that they meet current DOT standards.
Under FMCSA standards for rear bumpers in 393.86, motor carriers are required to maintain their trailers to the standards in effect at the time of manufacture, although a missing label is not a violation.
Added weight … and cost
The new standards will impact motor carriers in at least three ways:
- Added cost. Rear-impact guards will require more steel to meet the new standards. Those additional manufacturing costs will likely be passed on to consumers.
- Added weight. The DOT says the new rule will add 49 pounds to the average trailer or semitrailer. That means a little less freight and a little more fuel usage.
- Improved safety. The DOT estimates that the new standards will save about one life and 3.5 serious injuries per year, which could also impact the cost of litigation for carriers. Side underride is next Meanwhile, the DOT is working on new rules for side underride guards for trailers and semitrailers, in response to demands from the same safety groups that wanted action on rear underride guards.
The National Highway Traffic Safety Administration was expected to gather public input on side underride guards earlier this summer before deciding whether new rules are necessary.
Don’t forget: As of December 9, 2021, the FMCSA added rear-impact guards to the list of criteria for passing an annual vehicle inspection, as found in Appendix A to Part 396. Make sure your inspectors are including the bumpers on their annual trailer inspections.
Key to remember
New standards for rear-impact guards (trailer bumpers) will go into effect in 2024, impacting the cost and safety of some new trailers.