Four trailer manufacturers have passed the IIHS offset crash test with their new rear underride guard designs. Here is a recent article about one of those manufacturers who has made it standard on their newly-manufactured trailers:

Stoughton engineers were challenged to design a guard based on the recommendations of the Insurance Institute for Highway Safety (IIHS). The challenge was met without adding weight, without negatively affecting aerodynamics, and without reducing the robustness of the undercarriage and rear structure. Better yet, the guard is one of only three on the market to pass the difficult 30-degree offset crash test.

Read more here: New under-ride guard is standard

Read more here:

• A grieving dad got the attention of the trucking industry & made a difference.
• Underride Roundtable Led to Recommendations Submitted as a Consensus Public Comment to NHTSA
• Proposed safety regulations could reduce fatal rear-end car/truck crashes
• Media Coverage of the first Truck Underride Roundtable held at IIHS on May 5, 2016