US law Federal (United States) Regulations Title 49 CFR — Transportation Chapter II — FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION Part 236 — RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Subpart G — Definitions 236.743 49 C.F.R. § 236.743
Dog, swing. Last amended: 2017 Year: 2026 Length: 32 words Official source Cite as 49 C.F.R. § 236.743 (2026)
A locking dog mounted in such a manner that it is free to rotate on a trunnion which is riveted to a locking bar.
Cross Reference:
Element, contact. See receiver, § 236.788.
Cross-references to the CFR 236.788. 49 C.F.R. § 236.742 Next 49 C.F.R. § 236.744