subdivision of a State, or traffic unless the law or regulation is an unreasonable restriction on the design, construction, or performance of highly automated vehicles, automated driving systems, or components of automated driving systems. (B) Motor vehicle dealers Nothing in this subsection may be construed to prohibit a State or political subdivision of a State from maintaining, enforcing, prescribing, or continuing in effect any law or regulation regarding the sale, distribution, repair, or service of highly automated vehicles, automated driving systems, or components of automated driving systems by a dealer, manufacturer, or distributor. (C) Conformity with Federal law Nothing in this subsection shall be construed to preempt, restrict, or limit a State or political subdivision of a State from acting in accordance with any other Federal law. (4) Higher performance requirement However, the United States Government, a State, or a political subdivision of a State may prescribe a standard for a motor vehicle, motor vehicle equipment, highly automated vehicle, or automated driving system obtained for its own use that imposes a higher performance requirement than that required by the otherwise applicable standard under this chapter. (5) State enforcement A State may enforce a standard that is identical to a standard prescribed under this chapter.