49:4.1.1.1.30.0.107.1 | SECTION 236.0
| 236.0 Applicability, minimum requirements, and penalties. | |
49:4.1.1.1.30.1 | SUBPART A
| Subpart A - Rules and Instructions: All Systems | |
49:4.1.1.1.30.1.107 | SUBJGRP 107
| General | |
49:4.1.1.1.30.1.107.1 | SECTION 236.1
| 236.1 Plans, where kept. | |
49:4.1.1.1.30.1.107.2 | SECTION 236.2
| 236.2 Grounds. | |
49:4.1.1.1.30.1.107.3 | SECTION 236.3
| 236.3 Locking of signal apparatus housings. | |
49:4.1.1.1.30.1.107.4 | SECTION 236.4
| 236.4 Interference with normal functioning of device. | |
49:4.1.1.1.30.1.107.5 | SECTION 236.5
| 236.5 Design of control circuits on closed circuit principle. | |
49:4.1.1.1.30.1.107.6 | SECTION 236.6
| 236.6 Hand-operated switch equipped with switch circuit controller. | |
49:4.1.1.1.30.1.107.7 | SECTION 236.7
| 236.7 Circuit controller operated by switch-and-lock movement. | |
49:4.1.1.1.30.1.107.8 | SECTION 236.8
| 236.8 Operating characteristics of electromagnetic, electronic, or electrical apparatus. | |
49:4.1.1.1.30.1.107.9 | SECTION 236.9
| 236.9 Selection of circuits through indicating or annunciating instruments. | |
49:4.1.1.1.30.1.107.10 | SECTION 236.10
| 236.10 Electric locks, force drop type; where required. | |
49:4.1.1.1.30.1.107.11 | SECTION 236.11
| 236.11 Adjustment, repair, or replacement of component. | |
49:4.1.1.1.30.1.107.12 | SECTION 236.12
| 236.12 Spring switch signal protection; where required. | |
49:4.1.1.1.30.1.107.13 | SECTION 236.13
| 236.13 Spring switch; selection of signal control circuits through circuit controller. | |
49:4.1.1.1.30.1.107.14 | SECTION 236.14
| 236.14 Spring switch signal protection; requirements. | |
49:4.1.1.1.30.1.107.15 | SECTION 236.15
| 236.15 Timetable instructions. | |
49:4.1.1.1.30.1.107.16 | SECTION 236.16
| 236.16 Electric lock, main track releasing circuit. | |
49:4.1.1.1.30.1.107.17 | SECTION 236.17
| 236.17 Pipe for operating connections, requirements. | |
49:4.1.1.1.30.1.107.18 | SECTION 236.18
| 236.18 Software management control plan. | |
49:4.1.1.1.30.1.108 | SUBJGRP 108
| Roadway Signals and Cab Signals | |
49:4.1.1.1.30.1.108.19 | SECTION 236.21
| 236.21 Location of roadway signals. | |
49:4.1.1.1.30.1.108.20 | SECTION 236.22
| 236.22 Semaphore signal arm; clearance to other objects. | |
49:4.1.1.1.30.1.108.21 | SECTION 236.23
| 236.23 Aspects and indications. | |
49:4.1.1.1.30.1.108.22 | SECTION 236.24
| 236.24 Spacing of roadway signals. | |
49:4.1.1.1.30.1.108.23 | SECTION 236.25
| 236.25 [Reserved] | |
49:4.1.1.1.30.1.108.24 | SECTION 236.26
| 236.26 Buffing device, maintenance. | |
49:4.1.1.1.30.1.109 | SUBJGRP 109
| Track Circuits | |
49:4.1.1.1.30.1.109.25 | SECTION 236.51
| 236.51 Track circuit requirements. | |
49:4.1.1.1.30.1.109.26 | SECTION 236.52
| 236.52 Relayed cut-section. | |
49:4.1.1.1.30.1.109.27 | SECTION 236.53
| 236.53 Track circuit feed at grade crossing. | |
49:4.1.1.1.30.1.109.28 | SECTION 236.54
| 236.54 Minimum length of track circuit. | |
49:4.1.1.1.30.1.109.29 | SECTION 236.55
| 236.55 Dead section; maximum length. | |
49:4.1.1.1.30.1.109.30 | SECTION 236.56
| 236.56 Shunting sensitivity. | |
49:4.1.1.1.30.1.109.31 | SECTION 236.57
| 236.57 Shunt and fouling wires. | |
49:4.1.1.1.30.1.109.32 | SECTION 236.58
| 236.58 Turnout, fouling section. | |
49:4.1.1.1.30.1.109.33 | SECTION 236.59
| 236.59 Insulated rail joints. | |
49:4.1.1.1.30.1.109.34 | SECTION 236.60
| 236.60 Switch shunting circuit; use restricted. | |
49:4.1.1.1.30.1.110 | SUBJGRP 110
| Wires and Cables | |
49:4.1.1.1.30.1.110.35 | SECTION 236.71
| 236.71 Signal wires on pole line and aerial cable. | |
49:4.1.1.1.30.1.110.36 | SECTION 236.72
| 236.72 [Reserved] | |
49:4.1.1.1.30.1.110.37 | SECTION 236.73
| 236.73 Open-wire transmission line; clearance to other circuits. | |
49:4.1.1.1.30.1.110.38 | SECTION 236.74
| 236.74 Protection of insulated wire; splice in underground wire. | |
49:4.1.1.1.30.1.110.39 | SECTION 236.75
| 236.75 [Reserved] | |
49:4.1.1.1.30.1.110.40 | SECTION 236.76
| 236.76 Tagging of wires and interference of wires or tags with signal apparatus. | |
49:4.1.1.1.30.1.111 | SUBJGRP 111
| Inspections and Tests; All Systems | |
49:4.1.1.1.30.1.111.41 | SECTION 236.101
| 236.101 Purpose of inspection and tests; removal from service of relay or device failing to meet test requirements. | |
49:4.1.1.1.30.1.111.42 | SECTION 236.102
| 236.102 Semaphore or searchlight signal mechanism. | |
49:4.1.1.1.30.1.111.43 | SECTION 236.103
| 236.103 Switch circuit controller or point detector. | |
49:4.1.1.1.30.1.111.44 | SECTION 236.104
| 236.104 Shunt fouling circuit. | |
49:4.1.1.1.30.1.111.45 | SECTION 236.105
| 236.105 Electric lock. | |
49:4.1.1.1.30.1.111.46 | SECTION 236.106
| 236.106 Relays. | |
49:4.1.1.1.30.1.111.47 | SECTION 236.107
| 236.107 Ground tests. | |
49:4.1.1.1.30.1.111.48 | SECTION 236.108
| 236.108 Insulation resistance tests, wires in trunking and cables. | |
49:4.1.1.1.30.1.111.49 | SECTION 236.109
| 236.109 Time releases, timing relays and timing devices. | |
49:4.1.1.1.30.1.111.50 | SECTION 236.110
| 236.110 Results of tests. | |
49:4.1.1.1.30.2 | SUBPART B
| Subpart B - Automatic Block Signal Systems | |
49:4.1.1.1.30.2.112 | SUBJGRP 112
| Standards | |
49:4.1.1.1.30.2.112.1 | SECTION 236.201
| 236.201 Track-circuit control of signals. | |
49:4.1.1.1.30.2.112.2 | SECTION 236.202
| 236.202 Signal governing movements over hand-operated switch. | |
49:4.1.1.1.30.2.112.3 | SECTION 236.203
| 236.203 Hand operated crossover between main tracks; protection. | |
49:4.1.1.1.30.2.112.4 | SECTION 236.204
| 236.204 Track signaled for movements in both directions, requirements. | |
49:4.1.1.1.30.2.112.5 | SECTION 236.205
| 236.205 Signal control circuits; requirements. | |
49:4.1.1.1.30.2.112.6 | SECTION 236.206
| 236.206 Battery or power supply with respect to relay; location. | |
49:4.1.1.1.30.2.112.7 | SECTION 236.207
| 236.207 Electric lock on hand-operated switch; control. | |
49:4.1.1.1.30.3 | SUBPART C
| Subpart C - Interlocking | |
49:4.1.1.1.30.3.113 | SUBJGRP 113
| Standards | |
49:4.1.1.1.30.3.113.1 | SECTION 236.301
| 236.301 Where signals shall be provided. | |
49:4.1.1.1.30.3.113.2 | SECTION 236.302
| 236.302 Track circuits and route locking. | |
49:4.1.1.1.30.3.113.3 | SECTION 236.303
| 236.303 Control circuits for signals, selection through circuit controller operated by switch points or by switch locking mechanism. | |
49:4.1.1.1.30.3.113.4 | SECTION 236.304
| 236.304 Mechanical locking or same protection effected by circuits. | |
49:4.1.1.1.30.3.113.5 | SECTION 236.305
| 236.305 Approach or time locking. | |
49:4.1.1.1.30.3.113.6 | SECTION 236.306
| 236.306 Facing point lock or switch-and-lock movement. | |
49:4.1.1.1.30.3.113.7 | SECTION 236.307
| 236.307 Indication locking. | |
49:4.1.1.1.30.3.113.8 | SECTION 236.308
| 236.308 Mechanical or electric locking or electric circuits; requisites. | |
49:4.1.1.1.30.3.113.9 | SECTION 236.309
| 236.309 Loss of shunt protection; where required. | |
49:4.1.1.1.30.3.113.10 | SECTION 236.310
| 236.310 Signal governing approach to home signal. | |
49:4.1.1.1.30.3.113.11 | SECTION 236.311
| 236.311 Signal control circuits, selection through track relays or devices functioning as track relays and through signal mechanism contacts and time releases at automatic interlocking. | |
49:4.1.1.1.30.3.113.12 | SECTION 236.312
| 236.312 Movable bridge, interlocking of signal appliances with bridge devices. | |
49:4.1.1.1.30.3.113.13 | SECTION 236.313
| 236.313 [Reserved] | |
49:4.1.1.1.30.3.113.14 | SECTION 236.314
| 236.314 Electric lock for hand-operated switch or derail. | |
49:4.1.1.1.30.3.114 | SUBJGRP 114
| Rules and Instructions | |
49:4.1.1.1.30.3.114.15 | SECTION 236.326
| 236.326 Mechanical locking removed or disarranged; requirement for permitting train movements through interlocking. | |
49:4.1.1.1.30.3.114.16 | SECTION 236.327
| 236.327 Switch, movable-point frog or split-point derail. | |
49:4.1.1.1.30.3.114.17 | SECTION 236.328
| 236.328 Plunger of facing-point lock. | |
49:4.1.1.1.30.3.114.18 | SECTION 236.329
| 236.329 Bolt lock. | |
49:4.1.1.1.30.3.114.19 | SECTION 236.330
| 236.330 Locking dog of switch-and-lock movement. | |
49:4.1.1.1.30.3.114.20 | SECTION 236.331-236.333
| 236.331-236.333 [Reserved] | |
49:4.1.1.1.30.3.114.21 | SECTION 236.334
| 236.334 Point detector. | |
49:4.1.1.1.30.3.114.22 | SECTION 236.335
| 236.335 Dogs, stops and trunnions of mechanical locking. | |
49:4.1.1.1.30.3.114.23 | SECTION 236.336
| 236.336 Locking bed. | |
49:4.1.1.1.30.3.114.24 | SECTION 236.337
| 236.337 Locking faces of mechanical locking; fit. | |
49:4.1.1.1.30.3.114.25 | SECTION 236.338
| 236.338 Mechanical locking required in accordance with locking sheet and dog chart. | |
49:4.1.1.1.30.3.114.26 | SECTION 236.339
| 236.339 Mechanical locking, maintenance requirements. | |
49:4.1.1.1.30.3.114.27 | SECTION 236.340
| 236.340 Electromechanical interlocking machine; locking between electrical and mechanical levers. | |
49:4.1.1.1.30.3.114.28 | SECTION 236.341
| 236.341 Latch shoes, rocker links, and quadrants. | |
49:4.1.1.1.30.3.114.29 | SECTION 236.342
| 236.342 Switch circuit controller. | |
49:4.1.1.1.30.3.115 | SUBJGRP 115
| Inspection and Tests | |
49:4.1.1.1.30.3.115.30 | SECTION 236.376
| 236.376 Mechanical locking. | |
49:4.1.1.1.30.3.115.31 | SECTION 236.377
| 236.377 Approach locking. | |
49:4.1.1.1.30.3.115.32 | SECTION 236.378
| 236.378 Time locking. | |
49:4.1.1.1.30.3.115.33 | SECTION 236.379
| 236.379 Route locking. | |
49:4.1.1.1.30.3.115.34 | SECTION 236.380
| 236.380 Indication locking. | |
49:4.1.1.1.30.3.115.35 | SECTION 236.381
| 236.381 Traffic locking. | |
49:4.1.1.1.30.3.115.36 | SECTION 236.382
| 236.382 Switch obstruction test. | |
49:4.1.1.1.30.3.115.37 | SECTION 236.383
| 236.383 Valve locks, valves, and valve magnets. | |
49:4.1.1.1.30.3.115.38 | SECTION 236.384
| 236.384 Cross protection. | |
49:4.1.1.1.30.3.115.39 | SECTION 236.385
| 236.385 [Reserved] | |
49:4.1.1.1.30.3.115.40 | SECTION 236.386
| 236.386 Restoring feature on power switches. | |
49:4.1.1.1.30.3.115.41 | SECTION 236.387
| 236.387 Movable bridge locking. | |
49:4.1.1.1.30.4 | SUBPART D
| Subpart D - Traffic Control Systems | |
49:4.1.1.1.30.4.116 | SUBJGRP 116
| Standards | |
49:4.1.1.1.30.4.116.1 | SECTION 236.401
| 236.401 Automatic block signal system and interlocking standards applicable to traffic control systems. | |
49:4.1.1.1.30.4.116.2 | SECTION 236.402
| 236.402 Signals controlled by track circuits and control operator. | |
49:4.1.1.1.30.4.116.3 | SECTION 236.403
| 236.403 Signals at controlled point. | |
49:4.1.1.1.30.4.116.4 | SECTION 236.404
| 236.404 Signals at adjacent control points. | |
49:4.1.1.1.30.4.116.5 | SECTION 236.405
| 236.405 Track signaled for movements in both directions, change of direction of traffic. | |
49:4.1.1.1.30.4.116.6 | SECTION 236.406
| 236.406 [Reserved] | |
49:4.1.1.1.30.4.116.7 | SECTION 236.407
| 236.407 Approach or time locking; where required. | |
49:4.1.1.1.30.4.116.8 | SECTION 236.408
| 236.408 Route locking. | |
49:4.1.1.1.30.4.116.9 | SECTION 236.409
| 236.409 [Reserved] | |
49:4.1.1.1.30.4.116.10 | SECTION 236.410
| 236.410 Locking, hand-operated switch; requirements. | |
49:4.1.1.1.30.4.117 | SUBJGRP 117
| Rules and Instructions | |
49:4.1.1.1.30.4.117.11 | SECTION 236.426
| 236.426 Interlocking rules and instructions applicable to traffic control systems. | |
49:4.1.1.1.30.4.118 | SUBJGRP 118
| Inspection and Tests | |
49:4.1.1.1.30.4.118.12 | SECTION 236.476
| 236.476 Interlocking inspections and tests applicable to traffic control systems. | |
49:4.1.1.1.30.5 | SUBPART E
| Subpart E - Automatic Train Stop, Train Control and Cab Signal Systems | |
49:4.1.1.1.30.5.119 | SUBJGRP 119
| Standards | |
49:4.1.1.1.30.5.119.1 | SECTION 236.501
| 236.501 Forestalling device and speed control. | |
49:4.1.1.1.30.5.119.2 | SECTION 236.502
| 236.502 Automatic brake application, initiation by restrictive block conditions stopping distance in advance. | |
49:4.1.1.1.30.5.119.3 | SECTION 236.503
| 236.503 Automatic brake application; initiation when predetermined rate of speed exceeded. | |
49:4.1.1.1.30.5.119.4 | SECTION 236.504
| 236.504 Operation interconnected with automatic block-signal system. | |
49:4.1.1.1.30.5.119.5 | SECTION 236.505
| 236.505 Proper operative relation between parts along roadway and parts on locomotive. | |
49:4.1.1.1.30.5.119.6 | SECTION 236.506
| 236.506 Release of brakes after automatic application. | |
49:4.1.1.1.30.5.119.7 | SECTION 236.507
| 236.507 Brake application; full service. | |
49:4.1.1.1.30.5.119.8 | SECTION 236.508
| 236.508 Interference with application of brakes by means of brake valve. | |
49:4.1.1.1.30.5.119.9 | SECTION 236.509
| 236.509 Two or more locomotives coupled. | |
49:4.1.1.1.30.5.119.10 | SECTION 236.510
| 236.510 [Reserved] | |
49:4.1.1.1.30.5.119.11 | SECTION 236.511
| 236.511 Cab signals controlled in accordance with block conditions stopping distance in advance. | |
49:4.1.1.1.30.5.119.12 | SECTION 236.512
| 236.512 Cab signal indication when locomotive enters block where restrictive conditions obtain. | |
49:4.1.1.1.30.5.119.13 | SECTION 236.513
| 236.513 Audible indicator. | |
49:4.1.1.1.30.5.119.14 | SECTION 236.514
| 236.514 Interconnection of cab signal system with roadway signal system. | |
49:4.1.1.1.30.5.119.15 | SECTION 236.515
| 236.515 Visibility of cab signals. | |
49:4.1.1.1.30.5.119.16 | SECTION 236.516
| 236.516 Power supply. | |
49:4.1.1.1.30.5.120 | SUBJGRP 120
| Rules and Instructions; Roadway | |
49:4.1.1.1.30.5.120.17 | SECTION 236.526
| 236.526 Roadway element not functioning properly. | |
49:4.1.1.1.30.5.120.18 | SECTION 236.527
| 236.527 Roadway element insulation resistance. | |
49:4.1.1.1.30.5.120.19 | SECTION 236.528
| 236.528 Restrictive condition resulting from open hand-operated switch; requirement. | |
49:4.1.1.1.30.5.120.20 | SECTION 236.529
| 236.529 Roadway element inductor; height and distance from rail. | |
49:4.1.1.1.30.5.120.21 | SECTION 236.530
| 236.530 [Reserved] | |
49:4.1.1.1.30.5.120.22 | SECTION 236.531
| 236.531 Trip arm; height and distance from rail. | |
49:4.1.1.1.30.5.120.23 | SECTION 236.532
| 236.532 Strap iron inductor; use restricted. | |
49:4.1.1.1.30.5.120.24 | SECTION 236.533
| 236.533 [Reserved] | |
49:4.1.1.1.30.5.120.25 | SECTION 236.534
| 236.534 Entrance to equipped territory; requirements. | |
49:4.1.1.1.30.5.121 | SUBJGRP 121
| Rules and Instructions; Locomotives | |
49:4.1.1.1.30.5.121.26 | SECTION 236.551
| 236.551 Power supply voltage; requirement. | |
49:4.1.1.1.30.5.121.27 | SECTION 236.552
| 236.552 Insulation resistance; requirement. | |
49:4.1.1.1.30.5.121.28 | SECTION 236.553
| 236.553 Seal, where required. | |
49:4.1.1.1.30.5.121.29 | SECTION 236.554
| 236.554 Rate of pressure reduction; equalizing reservoir or brake pipe. | |
49:4.1.1.1.30.5.121.30 | SECTION 236.555
| 236.555 Repaired or rewound receiver coil. | |
49:4.1.1.1.30.5.121.31 | SECTION 236.556
| 236.556 Adjustment of relay. | |
49:4.1.1.1.30.5.121.32 | SECTION 236.557
| 236.557 Receiver; location with respect to rail. | |
49:4.1.1.1.30.5.121.33 | SECTION 236.558-236.559
| 236.558-236.559 [Reserved] | |
49:4.1.1.1.30.5.121.34 | SECTION 236.560
| 236.560 Contact element, mechanical trip type; location with respect to rail. | |
49:4.1.1.1.30.5.121.35 | SECTION 236.561
| 236.561 [Reserved] | |
49:4.1.1.1.30.5.121.36 | SECTION 236.562
| 236.562 Minimum rail current required. | |
49:4.1.1.1.30.5.121.37 | SECTION 236.563
| 236.563 Delay time. | |
49:4.1.1.1.30.5.121.38 | SECTION 236.564
| 236.564 Acknowledging time. | |
49:4.1.1.1.30.5.121.39 | SECTION 236.565
| 236.565 Provision made for preventing operation of pneumatic brake-applying apparatus by double-heading cock; requirement. | |
49:4.1.1.1.30.5.121.40 | SECTION 236.566
| 236.566 Locomotive of each train operating in train stop, train control or cab signal territory; equipped. | |
49:4.1.1.1.30.5.121.41 | SECTION 236.567
| 236.567 Restrictions imposed when device fails and/or is cut out en route. | |
49:4.1.1.1.30.5.121.42 | SECTION 236.568
| 236.568 Difference between speeds authorized by roadway signal and cab signal; action required. | |
49:4.1.1.1.30.5.122 | SUBJGRP 122
| Inspection and Tests; Roadway | |
49:4.1.1.1.30.5.122.43 | SECTION 236.576
| 236.576 Roadway element. | |
49:4.1.1.1.30.5.122.44 | SECTION 236.577
| 236.577 Test, acknowledgement, and cut-in circuits. | |
49:4.1.1.1.30.5.123 | SUBJGRP 123
| Inspection and Tests; Locomotive | |
49:4.1.1.1.30.5.123.45 | SECTION 236.586
| 236.586 Daily or after trip test. | |
49:4.1.1.1.30.5.123.46 | SECTION 236.587
| 236.587 Departure test. | |
49:4.1.1.1.30.5.123.47 | SECTION 236.588
| 236.588 Periodic test. | |
49:4.1.1.1.30.5.123.48 | SECTION 236.589
| 236.589 Relays. | |
49:4.1.1.1.30.5.123.49 | SECTION 236.590
| 236.590 Pneumatic apparatus. | |
49:4.1.1.1.30.6 | SUBPART F
| Subpart F - Dragging Equipment and Slide Detectors and Other Similar Protective Devices | |
49:4.1.1.1.30.6.124 | SUBJGRP 124
| Standards | |
49:4.1.1.1.30.6.124.1 | SECTION 236.601
| 236.601 Signals controlled by devices; location. | |
49:4.1.1.1.30.7 | SUBPART G
| Subpart G - Definitions | |
49:4.1.1.1.30.7.125.1 | SECTION 236.700
| 236.700 Definitions. | |
49:4.1.1.1.30.7.125.2 | SECTION 236.701
| 236.701 Application, brake; full service. | |
49:4.1.1.1.30.7.125.3 | SECTION 236.702
| 236.702 Arm, semaphore. | |
49:4.1.1.1.30.7.125.4 | SECTION 236.703
| 236.703 Aspect. | |
49:4.1.1.1.30.7.125.5 | SECTION 236.704
| 236.704 [Reserved] | |
49:4.1.1.1.30.7.125.6 | SECTION 236.705
| 236.705 Bar, locking. | |
49:4.1.1.1.30.7.125.7 | SECTION 236.706
| 236.706 Bed, locking. | |
49:4.1.1.1.30.7.125.8 | SECTION 236.707
| 236.707 Blade, semaphore. | |
49:4.1.1.1.30.7.125.9 | SECTION 236.708
| 236.708 Block. | |
49:4.1.1.1.30.7.125.10 | SECTION 236.709
| 236.709 Block, absolute. | |
49:4.1.1.1.30.7.125.11 | SECTION 236.710
| 236.710 Block, latch. | |
49:4.1.1.1.30.7.125.12 | SECTION 236.711
| 236.711 Bond, rail joint. | |
49:4.1.1.1.30.7.125.13 | SECTION 236.712
| 236.712 Brake pipe. | |
49:4.1.1.1.30.7.125.14 | SECTION 236.713
| 236.713 Bridge, movable. | |
49:4.1.1.1.30.7.125.15 | SECTION 236.714
| 236.714 Cab. | |
49:4.1.1.1.30.7.125.16 | SECTION 236.715-236.716
| 236.715-236.716 [Reserved] | |
49:4.1.1.1.30.7.125.17 | SECTION 236.717
| 236.717 Characteristics, operating. | |
49:4.1.1.1.30.7.125.18 | SECTION 236.718
| 236.718 Chart, dog. | |
49:4.1.1.1.30.7.125.19 | SECTION 236.719
| 236.719 Circuit, acknowledgment. | |
49:4.1.1.1.30.7.125.20 | SECTION 236.720
| 236.720 Circuit, common return. | |
49:4.1.1.1.30.7.125.21 | SECTION 236.721
| 236.721 Circuit, control. | |
49:4.1.1.1.30.7.125.22 | SECTION 236.722
| 236.722 Circuit, cut-in. | |
49:4.1.1.1.30.7.125.23 | SECTION 236.723
| 236.723 Circuit, double wire; line. | |
49:4.1.1.1.30.7.125.24 | SECTION 236.724
| 236.724 Circuit, shunt fouling. | |
49:4.1.1.1.30.7.125.25 | SECTION 236.725
| 236.725 Circuit, switch shunting. | |
49:4.1.1.1.30.7.125.26 | SECTION 236.726
| 236.726 Circuit, track. | |
49:4.1.1.1.30.7.125.27 | SECTION 236.727
| 236.727 Circuit, track; coded. | |
49:4.1.1.1.30.7.125.28 | SECTION 236.728
| 236.728 Circuit, trap. | |
49:4.1.1.1.30.7.125.29 | SECTION 236.729
| 236.729 Cock, double heading. | |
49:4.1.1.1.30.7.125.30 | SECTION 236.730
| 236.730 Coil, receiver. | |
49:4.1.1.1.30.7.125.31 | SECTION 236.731
| 236.731 Controller, circuit. | |
49:4.1.1.1.30.7.125.32 | SECTION 236.732
| 236.732 Controller, circuit; switch. | |
49:4.1.1.1.30.7.125.33 | SECTION 236.733
| 236.733 Current, foreign. | |
49:4.1.1.1.30.7.125.34 | SECTION 236.734
| 236.734 Current of traffic. | |
49:4.1.1.1.30.7.125.35 | SECTION 236.735
| 236.735 Current, leakage. | |
49:4.1.1.1.30.7.125.36 | SECTION 236.736
| 236.736 Cut-section. | |
49:4.1.1.1.30.7.125.37 | SECTION 236.737
| 236.737 Cut-section, relayed. | |
49:4.1.1.1.30.7.125.38 | SECTION 236.738
| 236.738 Detector, point. | |
49:4.1.1.1.30.7.125.39 | SECTION 236.739
| 236.739 Device, acknowledging. | |
49:4.1.1.1.30.7.125.40 | SECTION 236.740
| 236.740 Device, reset. | |
49:4.1.1.1.30.7.125.41 | SECTION 236.741
| 236.741 Distance, stopping. | |
49:4.1.1.1.30.7.125.42 | SECTION 236.742
| 236.742 Dog, locking. | |
49:4.1.1.1.30.7.125.43 | SECTION 236.743
| 236.743 Dog, swing. | |
49:4.1.1.1.30.7.125.44 | SECTION 236.744
| 236.744 Element, roadway. | |
49:4.1.1.1.30.7.125.45 | SECTION 236.745
| 236.745 Face, locking. | |
49:4.1.1.1.30.7.125.46 | SECTION 236.746
| 236.746 Feature, restoring. | |
49:4.1.1.1.30.7.125.47 | SECTION 236.747
| 236.747 Forestall. | |
49:4.1.1.1.30.7.125.48 | SECTION 236.748
| 236.748 [Reserved] | |
49:4.1.1.1.30.7.125.49 | SECTION 236.749
| 236.749 Indication. | |
49:4.1.1.1.30.7.125.50 | SECTION 236.750
| 236.750 Interlocking, automatic. | |
49:4.1.1.1.30.7.125.51 | SECTION 236.751
| 236.751 Interlocking, manual. | |
49:4.1.1.1.30.7.125.52 | SECTION 236.752
| 236.752 Joint, rail, insulated. | |
49:4.1.1.1.30.7.125.53 | SECTION 236.753
| 236.753 Limits, interlocking. | |
49:4.1.1.1.30.7.125.54 | SECTION 236.754
| 236.754 Line, open wire. | |
49:4.1.1.1.30.7.125.55 | SECTION 236.755
| 236.755 Link, rocker. | |
49:4.1.1.1.30.7.125.56 | SECTION 236.756
| 236.756 Lock, bolt. | |
49:4.1.1.1.30.7.125.57 | SECTION 236.757
| 236.757 Lock, electric. | |
49:4.1.1.1.30.7.125.58 | SECTION 236.758
| 236.758 Lock, electric, forced drop. | |
49:4.1.1.1.30.7.125.59 | SECTION 236.759
| 236.759 Lock, facing point. | |
49:4.1.1.1.30.7.125.60 | SECTION 236.760
| 236.760 Locking, approach. | |
49:4.1.1.1.30.7.125.61 | SECTION 236.761
| 236.761 Locking, electric. | |
49:4.1.1.1.30.7.125.62 | SECTION 236.762
| 236.762 Locking, indication. | |
49:4.1.1.1.30.7.125.63 | SECTION 236.763
| 236.763 Locking, latch operated. | |
49:4.1.1.1.30.7.125.64 | SECTION 236.764
| 236.764 Locking, lever operated. | |
49:4.1.1.1.30.7.125.65 | SECTION 236.765
| 236.765 Locking, mechanical. | |
49:4.1.1.1.30.7.125.66 | SECTION 236.766
| 236.766 Locking, movable bridge. | |
49:4.1.1.1.30.7.125.67 | SECTION 236.767
| 236.767 Locking, route. | |
49:4.1.1.1.30.7.125.68 | SECTION 236.768
| 236.768 Locking, time. | |
49:4.1.1.1.30.7.125.69 | SECTION 236.769
| 236.769 Locking, traffic. | |
49:4.1.1.1.30.7.125.70 | SECTION 236.770
| 236.770 Locomotive. | |
49:4.1.1.1.30.7.125.71 | SECTION 236.771
| 236.771 Machine, control. | |
49:4.1.1.1.30.7.125.72 | SECTION 236.772
| 236.772 Machine, interlocking. | |
49:4.1.1.1.30.7.125.73 | SECTION 236.773
| 236.773 Movements, conflicting. | |
49:4.1.1.1.30.7.125.74 | SECTION 236.774
| 236.774 Movement, facing. | |
49:4.1.1.1.30.7.125.75 | SECTION 236.775
| 236.775 Movement, switch-and-lock. | |
49:4.1.1.1.30.7.125.76 | SECTION 236.776
| 236.776 Movement, trailing. | |
49:4.1.1.1.30.7.125.77 | SECTION 236.777
| 236.777 Operator, control. | |
49:4.1.1.1.30.7.125.78 | SECTION 236.778
| 236.778 Piece, driving. | |
49:4.1.1.1.30.7.125.79 | SECTION 236.779
| 236.779 Plate, top. | |
49:4.1.1.1.30.7.125.80 | SECTION 236.780
| 236.780 Plunger, facing point lock. | |
49:4.1.1.1.30.7.125.81 | SECTION 236.781
| 236.781 [Reserved] | |
49:4.1.1.1.30.7.125.82 | SECTION 236.782
| 236.782 Point, controlled. | |
49:4.1.1.1.30.7.125.83 | SECTION 236.783
| 236.783 Point, stop-indication. | |
49:4.1.1.1.30.7.125.84 | SECTION 236.784
| 236.784 Position, deenergized. | |
49:4.1.1.1.30.7.125.85 | SECTION 236.785
| 236.785 Position, false restrictive. | |
49:4.1.1.1.30.7.125.86 | SECTION 236.786
| 236.786 Principle, closed circuit. | |
49:4.1.1.1.30.7.125.87 | SECTION 236.787
| 236.787 Protection, cross. | |
49:4.1.1.1.30.7.125.88 | SECTION 236.787a
| 236.787a Railroad. | |
49:4.1.1.1.30.7.125.89 | SECTION 236.788
| 236.788 Receiver. | |
49:4.1.1.1.30.7.125.90 | SECTION 236.789
| 236.789 Relay, timing. | |
49:4.1.1.1.30.7.125.91 | SECTION 236.790
| 236.790 Release, time. | |
49:4.1.1.1.30.7.125.92 | SECTION 236.791
| 236.791 Release, value. | |
49:4.1.1.1.30.7.125.93 | SECTION 236.792
| 236.792 Reservoir, equalizing. | |
49:4.1.1.1.30.7.125.94 | SECTION 236.793
| 236.793 Rod, lock. | |
49:4.1.1.1.30.7.125.95 | SECTION 236.794
| 236.794 Rod, up-and-down. | |
49:4.1.1.1.30.7.125.96 | SECTION 236.795
| 236.795 Route. | |
49:4.1.1.1.30.7.125.97 | SECTION 236.796
| 236.796 Routes, conflicting. | |
49:4.1.1.1.30.7.125.98 | SECTION 236.797
| 236.797 Route, interlocked. | |
49:4.1.1.1.30.7.125.99 | SECTION 236.798
| 236.798 Section, dead. | |
49:4.1.1.1.30.7.125.100 | SECTION 236.799
| 236.799 Section, fouling. | |
49:4.1.1.1.30.7.125.101 | SECTION 236.800
| 236.800 Sheet, locking. | |
49:4.1.1.1.30.7.125.102 | SECTION 236.801
| 236.801 Shoe, latch. | |
49:4.1.1.1.30.7.125.103 | SECTION 236.802
| 236.802 Shunt. | |
49:4.1.1.1.30.7.125.104 | SECTION 236.802a
| 236.802a Siding. | |
49:4.1.1.1.30.7.125.105 | SECTION 236.803
| 236.803 Signal, approach. | |
49:4.1.1.1.30.7.125.106 | SECTION 236.804
| 236.804 Signal, block. | |
49:4.1.1.1.30.7.125.107 | SECTION 236.805
| 236.805 Signal, cab. | |
49:4.1.1.1.30.7.125.108 | SECTION 236.806
| 236.806 Signal, home. | |
49:4.1.1.1.30.7.125.109 | SECTION 236.807
| 236.807 Signal, interlocking. | |
49:4.1.1.1.30.7.125.110 | SECTION 236.808
| 236.808 Signals, opposing. | |
49:4.1.1.1.30.7.125.111 | SECTION 236.809
| 236.809 Signal, slotted mechanical. | |
49:4.1.1.1.30.7.125.112 | SECTION 236.810
| 236.810 Spectacle, semaphore arm. | |
49:4.1.1.1.30.7.125.113 | SECTION 236.811
| 236.811 Speed, medium. | |
49:4.1.1.1.30.7.125.114 | SECTION 236.812
| 236.812 Speed, restricted. | |
49:4.1.1.1.30.7.125.115 | SECTION 236.813
| 236.813 Speed, slow. | |
49:4.1.1.1.30.7.125.116 | SECTION 236.813a
| 236.813a State, most restrictive. | |
49:4.1.1.1.30.7.125.117 | SECTION 236.814
| 236.814 Station, control. | |
49:4.1.1.1.30.7.125.118 | SECTION 236.815
| 236.815 Stop. | |
49:4.1.1.1.30.7.125.119 | SECTION 236.816
| 236.816 Superiority of trains. | |
49:4.1.1.1.30.7.125.120 | SECTION 236.817
| 236.817 Switch, electro-pneumatic. | |
49:4.1.1.1.30.7.125.121 | SECTION 236.818
| 236.818 Switch, facing point. | |
49:4.1.1.1.30.7.125.122 | SECTION 236.819
| 236.819 Switch, hand operated. | |
49:4.1.1.1.30.7.125.123 | SECTION 236.820
| 236.820 Switch, interlocked. | |
49:4.1.1.1.30.7.125.124 | SECTION 236.820a
| 236.820a Switch, power-operated. | |
49:4.1.1.1.30.7.125.125 | SECTION 236.821
| 236.821 Switch, sectionalizing. | |
49:4.1.1.1.30.7.125.126 | SECTION 236.822
| 236.822 Switch, spring. | |
49:4.1.1.1.30.7.125.127 | SECTION 236.823
| 236.823 Switch, trailing point. | |
49:4.1.1.1.30.7.125.128 | SECTION 236.824
| 236.824 System, automatic block signal. | |
49:4.1.1.1.30.7.125.129 | SECTION 236.825
| 236.825 System, automatic train control. | |
49:4.1.1.1.30.7.125.130 | SECTION 236.826
| 236.826 System, automatic train stop. | |
49:4.1.1.1.30.7.125.131 | SECTION 236.827
| 236.827 System, block signal. | |
49:4.1.1.1.30.7.125.132 | SECTION 236.828
| 236.828 System, traffic control. | |
49:4.1.1.1.30.7.125.133 | SECTION 236.829
| 236.829 Terminal, initial. | |
49:4.1.1.1.30.7.125.134 | SECTION 236.830
| 236.830 Time, acknowledging. | |
49:4.1.1.1.30.7.125.135 | SECTION 236.831
| 236.831 Time, delay. | |
49:4.1.1.1.30.7.125.136 | SECTION 236.831a
| 236.831a Track, main. | |
49:4.1.1.1.30.7.125.137 | SECTION 236.832
| 236.832 Train. | |
49:4.1.1.1.30.7.125.138 | SECTION 236.833
| 236.833 Train, opposing. | |
49:4.1.1.1.30.7.125.139 | SECTION 236.834
| 236.834 Trip. | |
49:4.1.1.1.30.7.125.140 | SECTION 236.835
| 236.835 Trunking. | |
49:4.1.1.1.30.7.125.141 | SECTION 236.836
| 236.836 Trunnion. | |
49:4.1.1.1.30.7.125.142 | SECTION 236.837
| 236.837 Valve, electro-pneumatic. | |
49:4.1.1.1.30.7.125.143 | SECTION 236.838
| 236.838 Wire, shunt. | |
49:4.1.1.1.30.8 | SUBPART H
| Subpart H - Standards for Processor-Based Signal and Train Control Systems | |
49:4.1.1.1.30.8.125.1 | SECTION 236.901
| 236.901 Purpose and scope. | |
49:4.1.1.1.30.8.125.2 | SECTION 236.903
| 236.903 Definitions. | |
49:4.1.1.1.30.8.125.3 | SECTION 236.905
| 236.905 Railroad Safety Program Plan (RSPP). | |
49:4.1.1.1.30.8.125.4 | SECTION 236.907
| 236.907 Product Safety Plan (PSP). | |
49:4.1.1.1.30.8.125.5 | SECTION 236.909
| 236.909 Minimum performance standard. | |
49:4.1.1.1.30.8.125.6 | SECTION 236.911
| 236.911 Exclusions. | |
49:4.1.1.1.30.8.125.7 | SECTION 236.913
| 236.913 Filing and approval of PSPs. | |
49:4.1.1.1.30.8.125.8 | SECTION 236.915
| 236.915 Implementation and operation. | |
49:4.1.1.1.30.8.125.9 | SECTION 236.917
| 236.917 Retention of records. | |
49:4.1.1.1.30.8.125.10 | SECTION 236.919
| 236.919 Operations and Maintenance Manual. | |
49:4.1.1.1.30.8.125.11 | SECTION 236.921
| 236.921 Training and qualification program, general. | |
49:4.1.1.1.30.8.125.12 | SECTION 236.923
| 236.923 Task analysis and basic requirements. | |
49:4.1.1.1.30.8.125.13 | SECTION 236.925
| 236.925 Training specific to control office personnel. | |
49:4.1.1.1.30.8.125.14 | SECTION 236.927
| 236.927 Training specific to locomotive engineers and other operating personnel. | |
49:4.1.1.1.30.8.125.15 | SECTION 236.929
| 236.929 Training specific to roadway workers. | |
49:4.1.1.1.30.9 | SUBPART I
| Subpart I - Positive Train Control Systems | |
49:4.1.1.1.30.9.125.1 | SECTION 236.1001
| 236.1001 Purpose and scope. | |
49:4.1.1.1.30.9.125.2 | SECTION 236.1003
| 236.1003 Definitions. | |
49:4.1.1.1.30.9.125.3 | SECTION 236.1005
| 236.1005 Requirements for Positive Train Control systems. | |
49:4.1.1.1.30.9.125.4 | SECTION 236.1006
| 236.1006 Equipping locomotives operating in PTC territory. | |
49:4.1.1.1.30.9.125.5 | SECTION 236.1007
| 236.1007 Additional requirements for high-speed service. | |
49:4.1.1.1.30.9.125.6 | SECTION 236.1009
| 236.1009 Procedural requirements. | |
49:4.1.1.1.30.9.125.7 | SECTION 236.1011
| 236.1011 PTC Implementation Plan content requirements. | |
49:4.1.1.1.30.9.125.8 | SECTION 236.1013
| 236.1013 PTC Development Plan and Notice of Product Intent content requirements and Type Approval. | |
49:4.1.1.1.30.9.125.9 | SECTION 236.1015
| 236.1015 PTC Safety Plan content requirements and PTC System Certification. | |
49:4.1.1.1.30.9.125.10 | SECTION 236.1017
| 236.1017 Independent third party Verification and Validation. | |
49:4.1.1.1.30.9.125.11 | SECTION 236.1019
| 236.1019 Main line track exceptions. | |
49:4.1.1.1.30.9.125.12 | SECTION 236.1020
| 236.1020 [Reserved] | |
49:4.1.1.1.30.9.125.13 | SECTION 236.1021
| 236.1021 Discontinuances, material modifications, and amendments. | |
49:4.1.1.1.30.9.125.14 | SECTION 236.1023
| 236.1023 Errors and malfunctions. | |
49:4.1.1.1.30.9.125.15 | SECTION 236.1025
| 236.1025 [Reserved] | |
49:4.1.1.1.30.9.125.16 | SECTION 236.1027
| 236.1027 PTC system exclusions. | |
49:4.1.1.1.30.9.125.17 | SECTION 236.1029
| 236.1029 PTC system use and failures. | |
49:4.1.1.1.30.9.125.18 | SECTION 236.1031
| 236.1031 Previously approved PTC systems. | |
49:4.1.1.1.30.9.125.19 | SECTION 236.1033
| 236.1033 Communications and security requirements. | |
49:4.1.1.1.30.9.125.20 | SECTION 236.1035
| 236.1035 Field testing requirements. | |
49:4.1.1.1.30.9.125.21 | SECTION 236.1037
| 236.1037 Records retention. | |
49:4.1.1.1.30.9.125.22 | SECTION 236.1039
| 236.1039 Operations and Maintenance Manual. | |
49:4.1.1.1.30.9.125.23 | SECTION 236.1041
| 236.1041 Training and qualification program, general. | |
49:4.1.1.1.30.9.125.24 | SECTION 236.1043
| 236.1043 Task analysis and basic requirements. | |
49:4.1.1.1.30.9.125.25 | SECTION 236.1045
| 236.1045 Training specific to office control personnel. | |
49:4.1.1.1.30.9.125.26 | SECTION 236.1047
| 236.1047 Training specific to locomotive engineers and other operating personnel. | |
49:4.1.1.1.30.9.125.27 | SECTION 236.1049
| 236.1049 Training specific to roadway workers. | |
49:4.1.1.1.30.10 | SUBPART 0
| | |
49:4.1.1.1.30.11.125.1.64 | APPENDIX Appendix A
| Appendix A to Part 236 [Reserved] | |
49:4.1.1.1.30.11.125.1.65 | APPENDIX Appendix B
| Appendix B to Part 236 - Risk Assessment Criteria | |
49:4.1.1.1.30.11.125.1.66 | APPENDIX Appendix C
| Appendix C to Part 236 - Safety Assurance Criteria and Processes | |
49:4.1.1.1.30.11.125.1.67 | APPENDIX Appendix D
| Appendix D to Part 236 - Independent Review of Verification and Validation | |
49:4.1.1.1.30.11.125.1.68 | APPENDIX Appendix E
| Appendix E to Part 236 - Human-Machine Interface (HMI) Design | |
49:4.1.1.1.30.11.125.1.69 | APPENDIX Appendix F
| Appendix F to Part 236 - Minimum Requirements of FRA Directed Independent Third-Party Assessment of PTC System Safety Verification and Validation | |