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.
What this item does
The short version, using the agency's own summary text.
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.
Final rule.
Important dates
The dates that matter most for this item.
Published
April 28, 2026
Starts
May 28, 2026
Who published it
The agencies listed in the official filing.
Federal rulebook sections mentioned
These are the parts of the Code of Federal Regulations cited in the filing.