FRA Track Safety Standards (49 CFR Part 213)

The federal Track Safety Standards govern minimum track conditions on all railroads that are part of the general railroad system of transportation. Part 213 establishes nine track classes with speed limits keyed to track geometry, structure, and inspection condition — from Class 1 (10 mph freight) through Class 9 (200 mph). It is the regulation FRA track inspectors enforce, and the reference used to classify and maintain every mainline, siding, and yard track in the United States.

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