Federal Motor Vehicle Safety Standards; Child Restraint Systems, Child Restraint Anchorage Systems, Incorporation by Reference

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Transportation National Highway Traffic Safety Administration 49 CFR Parts 571 and 585 [Docket No. NHTSA-2024-0089] RIN 2127-AL20 AGENCY: National Highway Traffic Safety Administration (NHTSA), Department of Transportation (DOT). ACTION: Final rule. SUMMARY: This final rule amends Federal Motor Vehicle Safety Standard (FMVSS) No. 225; Child restraint systems, and FMVSS No. 213b; Child restraint systems, to improve ease-of-use of the lower and tether anchorages, improve correct use of child restraint systems in vehicles, and maintain or improve the correct use and effectiveness of child restraint systems (CRSs) in motor vehicles. This final rule fulfills a mandate of the Moving Ahead for Progress in the 21st Century Act (MAP-21) requiring that NHTSA improve the ease-of-use for lower anchorages and tethers in all rear seat positions. DATES: Effective date: March 10, 2025. IBR date: The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register beginning March 10, 2025. Compliance date: This final rule adopts a 3-year phase-in period to comply with the updated requirements in FMVSS No. 225. The phase-in begins on September 1, 2028, and requires that 20 percent of a manufacturer's applicable vehicles produced from September 1, 2028, to August 31, 2029, comply with the updated FMVSS No. 225, followed by 50 percent from September 1, 2029, to August 31, 2030, and 100 percent on and after September 1, 2030. …