Federal Motor Vehicle Safety Standards; Power-Operated Window, Partition, and Roof Panel Systems

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This final rule amends the test procedures in our standard on power-operated window, partition, and roof panel systems to accommodate and ensure effective evaluation of new technology, specifically automatic reversal systems that operate by infrared reflectance. The standard's existing test procedures are more suitable for other types of technology (e.g., contact/force sensing systems and light beam interruption systems). In addition, the final rule clarifies the procedures for testing automatic reversal systems using a light beam interruption sensing method by specifying that rods used in testing such systems are not transparent.