49 CFR 236.205: Signal control circuits; requirements.
Where this section sits in the code
- Title 49—Transportation
- Subtitle B—Other Regulations Relating to Transportation
- CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
- PART 236—RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES
- Subpart B—Automatic Block Signal Systems
The circuits shall be so installed that each signal governing train movements into a block will display its most restrictive aspect when any of the following conditions obtain within the block:
(a) Occupancy by a train, locomotive, or car,
(b) When points of a switch are not closed in proper position,
(c) When an independently operated fouling point derail equipped with switch circuit controller is not in derailing position,
(d) When a track relay is in de-energized position or a device which functions as a track relay is in its most restrictive state; or when signal control circuit is deenergized.
Collected 2026-08-27T02:26:34Z. Source file · JSON