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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Two-Hour Safety Event Notification Guide

Document
Two-Hour-Safety-Event-Notification-Guide-May-2026_0.pdf (266.51 KB)

The FTA’s State Safety Oversight (SSO) regulation establishes definitions and minimum notification thresholds for safety events. The SSO final rule defines a “safety event” and requires a rail transit agency (RTA) to notify its State Safety Oversight Agency (SSOA) and the FTA within two hours of any safety event that meets certain thresholds. This Two-Hour Notification Guide is designed to help RTAs identify those events and notify FTA. This document updates prior guidance (issued on September 24, 2021, and August 2025).

Last updated: Wednesday, May 20, 2026
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