Federal Motor Vehicle Safety Standards; Lamps, Reflective Devices and Associated Equipment

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This document proposes to amend the Federal motor vehicle safety standard on lighting to permit white reflex reflectors designed to be mounted horizontally in trailer and truck tractor conspicuity treatments to be mounted vertically in upper rear corner locations if they comply with photometric requirements when tested horizontally. This action implements the grant of a rulemaking petition from James King & Co, and will have the benefit of simplifying compliance with the standard.