StacksVerified U.S. regulatory reference

49 CFR §234.235

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Each insulated rail joint used to separate train detection circuits of a highway-rail grade crossing shall be maintained to prevent current from flowing between rails separated by the insulation in an amount sufficient to cause a failure of the train detection circuit.