# Event Data Recorders
> **US Department of Transportation** · Final rule. · Published 2024-12-18 · Effective 2025-01-17 · 89 FR 102810
## Document
- **Document number:** 2024-29862
- **Category:** other
- **Sub-agency:** US Department of Transportation
- **Federal Register citation:** 89 FR 102810
- **CFR reference:** 49 CFR 563
- **Publication date:** 2024-12-18
- **Effective date:** 2025-01-17
- **DOT docket:** Docket No. NHTSA-2024-0084
## Abstract

This final rule amends regulations regarding event data recorders (EDRs) to extend the EDR recording period for timed data metrics from 5 seconds of pre-crash data at a frequency of 2 Hz to 20 seconds of pre-crash data at a frequency of 10 Hz. This final rule responds to the mandate of the Fixing America's Surface Transportation Act (FAST Act) to establish the appropriate recording period in NHTSA's EDR regulation.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/12/18/2024-29862/event-data-recorders)
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