Federal Motor Vehicle Safety Standards; Seat Belt Assembly Anchorages

摘要

This document supplements NHTSA's March 2012 notice of proposed rulemaking (NPRM) to amend Federal Motor Vehicle Safety Standard (FMVSS) No. 210, "Seat belt assembly anchorages," to specify a force application device (FAD) for use as a testing interface to transfer loads onto the seat belt anchorage system during compliance tests of anchorage strength. The agency received a number of comments on the NPRM that raised issues concerning the feasibility of the FAD proposal. After reviewing the comments, NHTSA has decided to propose in this SNPRM an alternative test procedure, i.e., one that would maintain the current FMVSS No. 210 body blocks and adopt procedures ensuring that the placement of the body blocks, at pre-load, is sufficiently specified. The agency requests comments on this alternative strategy and other potential enhancements to the current body block test procedure.