Tremcar is recalling certain 2008-2017 Hutchinson and Tremcar 406 B-train Pups, 2012-2017 Hutchinson and Tremcar 406 2 Axle Semi-Trailers, 2015-2017 Tremcar 406 3 Axle Semi-Trailers, and 2013 Tremcar 406 Quad Wagon vehicles. The rear impact guards on these vehicles were manufactured with aluminum alloy of insufficient strength. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 223, “Rear Impact Guards.”