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SUMMARY: On June 21, 2005, NHTSA published a final rule that made technical amendments to several regulations that reference NHTSA's Vehicle Safety Hotline telephone number. The rule updated the Hotline telephone number and added our Web address to the information that NHTSA requires manufacturers and dealers to provide consumers. The effective date for those amendments to Part 571, Federal motor vehicle safety standards, Part 575, Consumer information; and Part 582, Insurance cost information regulation, is June 21, 2006. This document withdraws the June 21, 2005 amendments to part 571, in response to a request from General Motors and other motor vehicle manufacturers to have the effective date coincide with the traditional September 1 vehicle model year changeover date, this document changes the effective date of the amendments to September 1, 2006.