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.

Find the Latest Information on the Coronavirus/COVID-19 at FTA's Coronavirus landing page.

United States Department of Transportation United States Department of Transportation

SSO Final Rule Safety Stakeholder Letter

On March 16, 2016, the FTA published a final rule to establish an enhanced rail transit State Safety Oversight (SSO) program. The SSO final rule is the first final rule that FTA has issued under the Public Transportation Safety Program, initially authorized by the Moving Ahead for Progress in the 21st Century Act (MAP-21).

Last updated: Monday, March 21, 2016
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