Data / Federal rules / 2026-00728
Federal Motor Vehicle Safety Standards: Anti-Ejection Glazing for Bus Portals; Mandatory Applicability Beginning October 30, 2027
The National Highway Traffic Safety Administration published this final rule in the Federal Register on January 15, 2026. It took effect on January 15, 2026.
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What the agency says
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."
Key facts
- Document number
- 2026-00728
- Type
- Final rule
- Action
- Final rule; partial grant of a petition for reconsideration
- Agency
- Transportation Department; National Highway Traffic Safety Administration
- Published
- January 15, 2026
- Takes effect
- January 15, 2026
- Dates
- Effective Date: This final rule is effective January 15, 2026.
- Docket
- Docket No. NHTSA-2026-0001
- Regulation ID (RIN)
- 2127-AM79
- Code of Federal Regulations
- 49 CFR 571
- Topics
- Buses; Motor carriers; Motor vehicle safety; Motor vehicles
- Pages
- 10
Other documents from the National Highway Traffic Safety Administration
Everything from the National Highway Traffic Safety Administration · Rules on buses · Rules on motor carriers · Rules on motor vehicle safety · Published in January 2026
Read from the Federal Register API, last updated 2026-10-24. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.