The U.S. National Highway Traffic Safety Administration (NHTSA) seeks comments on its review of motor vehicle safety rules that could have a significant economic impact on a substantial number of small business entities. The group of rules at issue in the current review involve 49 C.F.R. parts 529 through 578, except parts 571 and 575. NHTSA will evaluate whether a specific rule should be revised or revoked to lessen its impact on small entities. Comments are requested by February 18, 2014. See Federal Register, December 17, 2013.