U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 49Chapter IIPart 236Subpart G - Subpart G—Definitions
View all text of Subpart G [§ 236.700 - § 236.838]
§ 236.727 - Circuit, track; coded.

A track circuit in which the energy is varied or interrupted periodically.

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