To amend title 49, United States Code, to permit State and local governments to adopt or continue in force speed limits for trains lower than Federal speed limits.

Amends Federal railroad law to authorize State and local governments to adopt or continue in force lower speed limits for trains than those established by the Secretary of Transportation. (Currently, a State may adopt or continue in force a law, regulation, or order related to railroad safety that is not presently regulated by Federal law, or that is additional or more stringent than that regulated by Federal law.)