Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

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.

The latest general information on the Coronavirus Disease 2019 (COVID-19) is available on the CDC website.

United States Department of Transportation United States Department of Transportation

Safety practices to reduce the risk of serious injury or death both to railroad employees engaged in switching operations and to the general public

Document Series
Safety Advisories
Safety Advisory Number
Subject Operating Practices, Switching Operations
railroad switching operations ; SOFA ; SOFA Matrix; locomotive engineer; foul track

DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact
Published Date: Friday, October 27, 2000