Federal (United States) · Regulations
Subpart C — Interlocking
38 sections
38 sections
- 49 C.F.R. § 236.301Where signals shall be provided.
- 49 C.F.R. § 236.302Track circuits and route locking.
- 49 C.F.R. § 236.303Control circuits for signals, selection through circuit controller operated by switch points or by switch locking mechanism.
- 49 C.F.R. § 236.304Mechanical locking or same protection effected by circuits.
- 49 C.F.R. § 236.305Approach or time locking.
- 49 C.F.R. § 236.306Facing point lock or switch-and-lock movement.
- 49 C.F.R. § 236.307Indication locking.
- 49 C.F.R. § 236.308Mechanical or electric locking or electric circuits; requisites.
- 49 C.F.R. § 236.309Loss of shunt protection; where required.
- 49 C.F.R. § 236.310Signal governing approach to home signal.
- 49 C.F.R. § 236.311Signal control circuits, selection through track relays or devices functioning as track relays and through signal mechanism contacts and time releases at automatic interlocking.
- 49 C.F.R. § 236.312Movable bridge, interlocking of signal appliances with bridge devices.
- 49 C.F.R. § 236.314Electric lock for hand-operated switch or derail.
- 49 C.F.R. § 236.326Mechanical locking removed or disarranged; requirement for permitting train movements through interlocking.
- 49 C.F.R. § 236.327Switch, movable-point frog or split-point derail.
- 49 C.F.R. § 236.328Plunger of facing-point lock.
- 49 C.F.R. § 236.329Bolt lock.
- 49 C.F.R. § 236.330Locking dog of switch-and-lock movement.
- 49 C.F.R. § 236.334Point detector.
- 49 C.F.R. § 236.335Dogs, stops and trunnions of mechanical locking.
- 49 C.F.R. § 236.336Locking bed.
- 49 C.F.R. § 236.337Locking faces of mechanical locking; fit.
- 49 C.F.R. § 236.338Mechanical locking required in accordance with locking sheet and dog chart.
- 49 C.F.R. § 236.339Mechanical locking, maintenance requirements.
- 49 C.F.R. § 236.340Electromechanical interlocking machine; locking between electrical and mechanical levers.
- 49 C.F.R. § 236.341Latch shoes, rocker links, and quadrants.
- 49 C.F.R. § 236.342Switch circuit controller.
- 49 C.F.R. § 236.376Mechanical locking.
- 49 C.F.R. § 236.377Approach locking.
- 49 C.F.R. § 236.378Time locking.
- 49 C.F.R. § 236.379Route locking.
- 49 C.F.R. § 236.380Indication locking.
- 49 C.F.R. § 236.381Traffic locking.
- 49 C.F.R. § 236.382Switch obstruction test.
- 49 C.F.R. § 236.383Valve locks, valves, and valve magnets.
- 49 C.F.R. § 236.384Cross protection.
- 49 C.F.R. § 236.386Restoring feature on power switches.
- 49 C.F.R. § 236.387Movable bridge locking.