Regulatory Relief To Allow Speeds Up to 45 MPH for Non-Traversable Curbs
This rule revises the definition of a non-traversable curb in FRA's train horn regulation in conformance with five longstanding FRA waivers that allow highway speeds up to 45 miles per hour (mph) where these highway curbs are present in quiet zones established and maintained in accordance with the regulation.
| Agency | Transportation Department, Federal Railroad Administration |
|---|---|
| Document type | Rule |
| Published | 2026-04-28 |
| Summary | This rule revises the definition of a non-traversable curb in FRA's train horn regulation in conformance with five longstanding FRA waivers that allow highway speeds up to 45 miles per hour (mph) where these highway curbs are present in quiet zones established and maintained in accordance with the regulation. |
| Document number | 2026-08258 |
| Official record | https://www.federalregister.gov/documents/2026/04/28/2026-08258/regulatory-relief-to-allow-speeds-up-to-45-mph-for-non-traversable-curbs |