49 CFR 213.139

§ 213.139 Spring rail frogs.

United States · 49 CFR — Transportation · Status: effective

Cite this

Citation: 49 CFR 213.139, § 213.139 Spring rail frogs, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/257900
Permanent ID: ys:prov:257900@1
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Full text

(a) The outer edge of a wheel tread shall not contact the gage side of a spring wing rail. (b) The toe of each wing rail shall be solidly tamped and fully and tightly bolted. (c) Each frog with a bolt hole defect or head-web separation shall be replaced. (d) Each spring shall have compression sufficient to hold the wing rail against the point rail. (e) The clearance between the holddown housing and the horn shall not be more than one-fourth of an inch.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.