U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 49Chapter IIPart 213Subpart C - Subpart C—Track Geometry
§ 213.51 - Scope.
§ 213.53 - Gage.
§ 213.55 - Track alinement.
§ 213.57 - Curves; elevation and speed limitations.
§ 213.59 - Elevation of curved track; runoff.
§ 213.63 - Track surface.
§ 213.65 - Combined track alinement and surface deviations.
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