An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Notice.
This document provides the public notice that by letter received September 2, 2025, BNSF Railway (BNSF) petitioned FRA for an amendment from existing relief from certain regulations concerning calibration of air flow method (AFM) indicators.