Data / Federal rules / 2025-21506
Event Data Recorders
The National Highway Traffic Safety Administration published this proposed rule in the Federal Register on November 28, 2025. Comments closed on December 29, 2025.
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What the agency says
NHTSA published a final rule on December 18, 2024, in response to a mandate of the Fixing America's Surface Transportation Act (FAST Act) to establish the appropriate recording period in NHTSA's Event Data Recorder (EDR) regulation (49 CFR part 563). The final rule amended the pre-crash data capture requirements of EDRs by increasing the recording duration and sample rate from 5 seconds at 2 Hz to 20 seconds at 10 Hz. The agency received three petitions for reconsideration from the Alliance of Automotive Innovation, the EDR Committee of SAE International, and FCA US LLC (a subsidiary of Stellantis N.V.) in response to the final rule. NHTSA is proposing to delay the compliance date from September 1, 2027, to September 1, 2028, and implement a phase-in period for EDRs to meet the new requirements.
Key facts
- Document number
- 2025-21506
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM); response to petitions for reconsideration
- Agency
- Transportation Department; National Highway Traffic Safety Administration
- Published
- November 28, 2025
- Comments due
- December 29, 2025
- Dates
- Comments must be received by December 29, 2025. In compliance with the Paperwork Reduction Act, NHTSA is also seeking comment on a reinstatement with modification to a previously approved information collection. For additional information, see the Paperwork Reduction Act section under the Rulemaking Analyses and Notices section below. All comments relating to the information collection requirements should be submitted to NHTSA and to the Office of Management and Budget (OMB) at the address listed in the ADDRESSES section on or before December 29, 2025.
- Docket
- Docket No. NHTSA-2025-0050
- Regulation ID (RIN)
- 2127-AM78
- Code of Federal Regulations
- 49 CFR 563; 49 CFR 585
- Topics
- Motor vehicle safety; Motor vehicles; Reporting and recordkeeping requirements
- Pages
- 15
Other documents from the National Highway Traffic Safety Administration
Everything from the National Highway Traffic Safety Administration · Rules on motor vehicle safety · Rules on motor vehicles · Rules on reporting and recordkeeping requirements · Published in November 2025
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