49 CFR § 236.577 Rules, Standards, and Instructions Governing the Installation, Inspection, Maintenance, and Repair of Signal and Train Control Systems, Devices, and Appliances

§ 236.577 Test, acknowledgement, and cut-in circuits.

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

Test, acknowledgement, and cut-in circuits shall be tested at least once every twelve months.

[49 FR 3387, Jan. 26, 1984]

← § 236.576 Roadway element.§ 236.586 Daily or after trip test. →