49 CFR § 236.5 Rules, Standards, and Instructions Governing the Installation, Inspection, Maintenance, and Repair of Signal and Train Control Systems, Devices, and Appliances

§ 236.5 Design of control circuits on closed circuit principle.

Current through Sep 25, 2026 · Read all of Part 236

All control circuits the functioning of which affects safety of train operation shall be designed on the closed circuit principle, except circuits for roadway equipment of intermittent automatic train stop system.

← § 236.4 Interference with normal functioning of device.§ 236.6 Hand-operated switch equipped with switch circuit controller. →