Parts and Accessories Necessary for Safe Operation; Virginia Tech Transportation Institute Exemption Application

Summary: The Federal Motor Carrier Safety Administration (FMCSA) announces its decision to grant Virginia Tech Transportation Institute's (VTTI) exemption application to allow the placement of camera-based data acquisition systems (DAS) at the bottom of windshields on commercial motor vehicles (CMVs). The Federal Motor Carrier Safety Regulations (FMCSRs) require antennas, transponders, and similar devices to be located not more than 6 inches below the upper edge of the windshield, outside the area swept by the windshield wipers, and outside the driver's sight lines to the road and highway signs and signals. As part of a National Highway Traffic Safety Administration (NHTSA) research program, VTTI is coordinating development and installation of the DASs in up to 150 CMVs. The exemption will enable VTTI and NHTSA to conduct research on the reliability of collision avoidance systems for CMVs. FMCSA believes that mounting the DASs at the bottom of the windshield would maintain a level of safety that is equivalent to, or greater than, the level of safety achieved without the exemption.