# Federal Motor Vehicle Safety Standards; Occupant Crash Protection, Seat Belt Reminder Systems, Controls and Displays
> **National Highway Traffic Safety Administration** · Final rule. · Published 2025-01-03 · Effective 2025-03-04 · 90 FR 390
## Document
- **Document number:** 2024-30340
- **Category:** fmvss
- **Sub-agency:** National Highway Traffic Safety Administration
- **Federal Register citation:** 90 FR 390
- **CFR reference:** 49 CFR 571
- **Publication date:** 2025-01-03
- **Effective date:** 2025-03-04
- **DOT docket:** Docket No. NHTSA-2024-0071
## Abstract

This document amends Federal Motor Vehicle Safety Standard (FMVSS) No. 208, "Occupant crash protection," to require a seat belt use warning system for rear seats. The rule also updates and enhances the current seat belt warning requirements for the driver's seat belt and extends these requirements to the front outboard passenger seat. The final rule applies (with some exceptions) to passenger cars, trucks, most buses, and multipurpose passenger vehicles with a gross vehicle weight rating of 4,536 kilograms (10,000 pounds) or less. This document also makes related amendments to FMVSS No. 101, "Controls and displays."

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/01/03/2024-30340/federal-motor-vehicle-safety-standards-occupant-crash-protection-seat-belt-reminder-systems-controls)
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