USA Banner

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.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Safety Advisory 2009-02

Notice of Safety Advisory 2009-02; Inspection of Bottom Outlet Valves and Assemblies.

FRA is issuing Safety Advisory 2009-02 to ensure that tank cars with defective or inoperable bottom outlet valves are not loaded with hazardous materials and offered for transportation, or in the event that a bottom outlet valve becomes inoperable en route, adequate unloading procedures are followed to prevent any unintended release of the car's contents. This safety advisory recommends specific loading and unloading procedures for hazardous materials tank cars equipped with bottom outlet valves, as well as the inspection, and as necessary, the repair of these valves.

View PDF