---
kind: "section"
citation: "49 C.F.R. § 236.511"
title: "49"
number: "236.511"
heading: "Cab signals controlled in accordance with block conditions stopping distance in advance."
url: "https://uscodex.org/cfr/49/236.511"
---

# §236.511. Cab signals controlled in accordance with block conditions stopping distance in advance.


The automatic cab signal system shall be arranged so that cab signals will be continuously controlled in accordance with conditions described in [§ 236.205](/cfr/49/236.205.md) that obtain at least stopping distance in advance.


## Notes

### Authority

Authority: 49 U.S.C. 20102-20103, 20107, 20133, 20141, 20157, 20301-20303, 20306, 20501-20505, 20701-20703, 21301-21302, 21304; 28 U.S.C. 2461 note; and 49 CFR 1.89.

### Source

Source: 33 FR 19684, Dec. 25, 1968, unless otherwise noted.