49 CFR 236.56

§ 236.56 Shunting sensitivity.

United States · 49 CFR — Transportation · Status: effective

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Citation: 49 CFR 236.56, § 236.56 Shunting sensitivity, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/258967
Permanent ID: ys:prov:258967@1
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Full text

Each track circuit controlling home signal or approach locking shall be so maintained that track relay is in deenergized position, or device that functions as a track relay shall be in its most restrictive state if, when track circuit is dry, a shunt of 0.06 ohm resistance is connected across the track rails of the circuit, including fouling sections of turnouts.

Legislative history

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