| 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. | |