Because The agency has limited test experience with adjustable side impact technology, we cannot yet speak to any safety benefits associated with it. The agency plans to continue its research and testing to determine if and how FMVSS No. (h) Webbing. The ends of webbing rein a seat belt assembly https://www.fcc.gov/fcc-bin/bye?https://www.ledteks.com/seatbelt-and-safety-belt-webbing