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This rulemaking, if finalized, would respond to a petition submitted by Toyota Motor Company North America, Inc. requesting that NHTSA's lighting standard be amended to permit an advanced headlighting systems known as an adaptive driving beam (ADB) as optional equipment. ADB systems provide upper beam illumination, where appropriate in the beam pattern, while limiting undesirable glare directed toward oncoming and proceeding drivers. This rulemaking would amend FMVSS No. 108 such that an ADB headlighting system, meeting specified performance criteria and installed as original equipment, could be certified by vehicle manufacturers as optional equipment and, thus, would allow their use of these innovative safety systems on motor vehicles.