49 CFR 236.824
§ 236.824 System, automatic block signal.
United States · 49 CFR — Transportation · Status: effective
Cite this
- Citation
- 49 CFR 236.824, § 236.824 System, automatic block signal, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/259231
- Permanent ID
ys:prov:259231@1- SHA-256
23bf07f46546680e2033fc6a01bcdbb9ca18442e0b4ea5fe0494be7181c41c66
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
A block signal system wherein the use of each block is governed by an automatic block signal, cab signal, or both.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.