49 CFR Part 213
§ 213.127 — Rail fastening systems
FRA Part 213 · Subpart D — Track Structure. Full current text with cross-references on BuildSpec.
§ 213.127 Rail fastening systems. (a) Track shall be fastened by a system of components that effectively maintains gage within the limits prescribed in § 213.53(b). Each component of each such system shall be evaluated to determine whether gage is effectively being maintained. (b) If rail anchors are applied to concrete crossties, the combination of the crossties, fasteners, and rail anchors must provide effective longitudinal restraint. (c) Where fastener placement impedes insulated joints from performing as intended, the fastener may be modified or removed, provided that the crosstie…
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