49 CFR 236.768
§ 236.768 Locking, time.
United States · 49 CFR — Transportation · Status: effective
Cite this
- Citation
- 49 CFR 236.768, § 236.768 Locking, time, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/259171
- Permanent ID
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Full text
A method of locking, either mechanical or electrical, which, after a signal has been caused to display an aspect to proceed, prevents, until after the expiration of a predetermined time interval after such signal has been caused to display its most restrictive aspect, the operation of any interlocked or electrically locked switch, movable-point frog, or derail in the route governed by that signal, and which prevents an aspect to proceed from being displayed for any conflicting route.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.