{"abstract":"This document partially grants a petition for reconsideration of the October 30, 2024 final rule that established Federal Motor Vehicle Safety Standard (FMVSS) No. 217a, \"Anti-ejection glazing for bus portals; Mandatory applicability beginning October 30, 2027.\" The standard intends to drive installation of advanced glazing in over-the- road buses (motorcoaches) and other large buses to reduce occupant ejections. This final rule revises the minimum size requirement for applicable portals, adds a figure to illustrate a daylight opening periphery, and clarifies the target location for edge impact tests. This document denies all other portions of the petition for reconsideration, including revising the definition of \"daylight opening.\"","action":"Final rule; partial grant of a petition for reconsideration.","agencies":[{"raw_name":"DEPARTMENT OF TRANSPORTATION","name":"Transportation Department","id":492,"url":"https://www.federalregister.gov/agencies/transportation-department","json_url":"https://www.federalregister.gov/api/v1/agencies/492","parent_id":null,"slug":"transportation-department"},{"raw_name":"National Highway Traffic Safety Administration","name":"National Highway Traffic Safety Administration","id":345,"url":"https://www.federalregister.gov/agencies/national-highway-traffic-safety-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/345","parent_id":492,"slug":"national-highway-traffic-safety-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2026/01/15/2026-00728.html","cfr_references":[{"chapter":null,"citation_url":null,"part":571,"title":49}],"citation":"91 FR 1709","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective Date: This final rule is effective January 15, 2026.","disposition_notes":null,"docket_ids":["Docket No. 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Mandatory Applicability Beginning October 30, 2027","toc_doc":"Anti-Ejection Glazing for Bus Portals; Mandatory Applicability Beginning October 30, 2027","toc_subject":"Federal Motor Vehicle Safety Standards","topics":["Buses","Motor carriers","Motor vehicle safety","Motor vehicles"],"type":"Rule","volume":91}