GENERAL

• § 236.1 - Plans, where kept.

• § 236.2 - Grounds.

• § 236.3 - Locking of signal apparatus housings.

• § 236.4 - Interference with normal functioning of device.

• § 236.5 - Design of control circuits on closed circuit principle.

• § 236.6 - Hand-operated switch equipped with switch circuit controller.

• § 236.7 - Circuit controller operated by switch-and-lock movement.

• § 236.8 - Operating characteristics of electromagnetic, electronic, or electrical apparatus.

• § 236.9 - Selection of circuits through indicating or annunciating instruments.

• § 236.10 - Electric locks, force drop type; where required.

• § 236.11 - Adjustment, repair, or replacement of component.

• § 236.12 - Spring switch signal protection; where required.

• § 236.13 - Spring switch; selection of signal control circuits through circuit controller.

• § 236.14 - Spring switch signal protection; requirements.

• § 236.15 - Timetable instructions.

• § 236.16 - Electric lock, main track releasing circuit.

• § 236.17 - Pipe for operating connections, requirements.

• § 236.18 - Software management control plan.

ROADWAY SIGNALS AND CAB SIGNALS

• § 236.21 - Location of roadway signals.

• § 236.22 - Semaphore signal arm; clearance to other objects.

• § 236.23 - Aspects and indications.

• § 236.24 - Spacing of roadway signals.

• § 236.25 - [Reserved]

• § 236.26 - Buffing device, maintenance.

TRACK CIRCUITS

• § 236.51 - Track circuit requirements.

• § 236.52 - Relayed cut-section.

• § 236.53 - Track circuit feed at grade crossing.

• § 236.54 - Minimum length of track circuit.

• § 236.55 - Dead section; maximum length.

• § 236.56 - Shunting sensitivity.

• § 236.57 - Shunt and fouling wires.

• § 236.58 - Turnout, fouling section.

• § 236.59 - Insulated rail joints.

• § 236.60 - Switch shunting circuit; use restricted.

WIRES AND CABLES

• § 236.71 - Signal wires on pole line and aerial cable.

• § 236.72 - [Reserved]

• § 236.73 - Open-wire transmission line; clearance to other circuits.

• § 236.74 - Protection of insulated wire; splice in underground wire.

• § 236.75 - [Reserved]

• § 236.76 - Tagging of wires and interference of wires or tags with signal apparatus.

INSPECTIONS AND TESTS; ALL SYSTEMS

• § 236.101 - Purpose of inspection and tests; removal from service of relay or device failing to meet test requirements.

• § 236.102 - Semaphore or searchlight signal mechanism.

• § 236.103 - Switch circuit controller or point detector.

• § 236.104 - Shunt fouling circuit.

• § 236.105 - Electric lock.

• § 236.106 - Relays.

• § 236.107 - Ground tests.

• § 236.108 - Insulation resistance tests, wires in trunking and cables.

• § 236.109 - Time releases, timing relays and timing devices.

• § 236.110 - Results of tests.