Federal (United States) · Regulations
Subpart A — Rules and Instructions: All Systems
47 sections
47 sections
- 49 C.F.R. § 236.1Plans, where kept.
- 49 C.F.R. § 236.2Grounds.
- 49 C.F.R. § 236.3Locking of signal apparatus housings.
- 49 C.F.R. § 236.4Interference with normal functioning of device.
- 49 C.F.R. § 236.5Design of control circuits on closed circuit principle.
- 49 C.F.R. § 236.6Hand-operated switch equipped with switch circuit controller.
- 49 C.F.R. § 236.7Circuit controller operated by switch-and-lock movement.
- 49 C.F.R. § 236.8Operating characteristics of electromagnetic, electronic, or electrical apparatus.
- 49 C.F.R. § 236.9Selection of circuits through indicating or annunciating instruments.
- 49 C.F.R. § 236.10Electric locks, force drop type; where required.
- 49 C.F.R. § 236.11Adjustment, repair, or replacement of component.
- 49 C.F.R. § 236.12Spring switch signal protection; where required.
- 49 C.F.R. § 236.13Spring switch; selection of signal control circuits through circuit controller.
- 49 C.F.R. § 236.14Spring switch signal protection; requirements.
- 49 C.F.R. § 236.15Timetable instructions.
- 49 C.F.R. § 236.16Electric lock, main track releasing circuit.
- 49 C.F.R. § 236.17Pipe for operating connections, requirements.
- 49 C.F.R. § 236.18Software management control plan.
- 49 C.F.R. § 236.21Location of roadway signals.
- 49 C.F.R. § 236.22Semaphore signal arm; clearance to other objects.
- 49 C.F.R. § 236.23Aspects and indications.
- 49 C.F.R. § 236.24Spacing of roadway signals.
- 49 C.F.R. § 236.26Buffing device, maintenance.
- 49 C.F.R. § 236.51Track circuit requirements.
- 49 C.F.R. § 236.52Relayed cut-section.
- 49 C.F.R. § 236.53Track circuit feed at grade crossing.
- 49 C.F.R. § 236.54Minimum length of track circuit.
- 49 C.F.R. § 236.55Dead section; maximum length.
- 49 C.F.R. § 236.56Shunting sensitivity.
- 49 C.F.R. § 236.57Shunt and fouling wires.
- 49 C.F.R. § 236.58Turnout, fouling section.
- 49 C.F.R. § 236.59Insulated rail joints.
- 49 C.F.R. § 236.60Switch shunting circuit; use restricted.
- 49 C.F.R. § 236.71Signal wires on pole line and aerial cable.
- 49 C.F.R. § 236.73Open-wire transmission line; clearance to other circuits.
- 49 C.F.R. § 236.74Protection of insulated wire; splice in underground wire.
- 49 C.F.R. § 236.76Tagging of wires and interference of wires or tags with signal apparatus.
- 49 C.F.R. § 236.101Purpose of inspection and tests; removal from service of relay or device failing to meet test requirements.
- 49 C.F.R. § 236.102Semaphore or searchlight signal mechanism.
- 49 C.F.R. § 236.103Switch circuit controller or point detector.
- 49 C.F.R. § 236.104Shunt fouling circuit.
- 49 C.F.R. § 236.105Electric lock.
- 49 C.F.R. § 236.106Relays.
- 49 C.F.R. § 236.107Ground tests.
- 49 C.F.R. § 236.108Insulation resistance tests, wires in trunking and cables.
- 49 C.F.R. § 236.109Time releases, timing relays and timing devices.
- 49 C.F.R. § 236.110Results of tests.