Title 49
PART 234 SUBPART D
Subpart D - Maintenance, Inspection, and Testing
- 49 U.S.C. 20103, 20107, 20152, 20160, 21301, 21304, 21311; Sec. 11401, Div. A, Pub. L. 114-94, 129 Stat. 1679 (49 U.S.C. 22501 note); and 49 CFR 1.89.
- 61 FR 31806, June 20, 1996, unless otherwise noted.
| 49:4.1.1.1.28.4.86 | SUBJGRP 86 | Maintenance Standards | |
| 49:4.1.1.1.28.4.86.1 | SECTION 234.201 | 234.201 Location of plans. | |
| 49:4.1.1.1.28.4.86.2 | SECTION 234.203 | 234.203 Control circuits. | |
| 49:4.1.1.1.28.4.86.3 | SECTION 234.205 | 234.205 Operating characteristics of warning system apparatus. | |
| 49:4.1.1.1.28.4.86.4 | SECTION 234.207 | 234.207 Adjustment, repair, or replacement of component. | |
| 49:4.1.1.1.28.4.86.5 | SECTION 234.209 | 234.209 Interference with normal functioning of system. | |
| 49:4.1.1.1.28.4.86.6 | SECTION 234.211 | 234.211 Security of warning system apparatus. | |
| 49:4.1.1.1.28.4.86.7 | SECTION 234.213 | 234.213 Grounds. | |
| 49:4.1.1.1.28.4.86.8 | SECTION 234.215 | 234.215 Standby power system. | |
| 49:4.1.1.1.28.4.86.9 | SECTION 234.217 | 234.217 Flashing light units. | |
| 49:4.1.1.1.28.4.86.10 | SECTION 234.219 | 234.219 Gate arm lights and light cable. | |
| 49:4.1.1.1.28.4.86.11 | SECTION 234.221 | 234.221 Lamp voltage. | |
| 49:4.1.1.1.28.4.86.12 | SECTION 234.223 | 234.223 Gate arm. | |
| 49:4.1.1.1.28.4.86.13 | SECTION 234.225 | 234.225 Activation of warning system. | |
| 49:4.1.1.1.28.4.86.14 | SECTION 234.227 | 234.227 Train detection apparatus. | |
| 49:4.1.1.1.28.4.86.15 | SECTION 234.229 | 234.229 Shunting sensitivity. | |
| 49:4.1.1.1.28.4.86.16 | SECTION 234.231 | 234.231 Fouling wires. | |
| 49:4.1.1.1.28.4.86.17 | SECTION 234.233 | 234.233 Rail joints. | |
| 49:4.1.1.1.28.4.86.18 | SECTION 234.235 | 234.235 Insulated rail joints. | |
| 49:4.1.1.1.28.4.86.19 | SECTION 234.237 | 234.237 Reverse switch cut-out circuit. | |
| 49:4.1.1.1.28.4.86.20 | SECTION 234.239 | 234.239 Tagging of wires and interference of wires or tags with signal apparatus. | |
| 49:4.1.1.1.28.4.86.21 | SECTION 234.241 | 234.241 Protection of insulated wire; splice in underground wire. | |
| 49:4.1.1.1.28.4.86.22 | SECTION 234.243 | 234.243 Wire on pole line and aerial cable. | |
| 49:4.1.1.1.28.4.86.23 | SECTION 234.245 | 234.245 Signs. | |
| 49:4.1.1.1.28.4.87 | SUBJGRP 87 | Inspections and Tests | |
| 49:4.1.1.1.28.4.87.24 | SECTION 234.247 | 234.247 Purpose of inspections and tests; removal from service of relay or device failing to meet test requirements. | |
| 49:4.1.1.1.28.4.87.25 | SECTION 234.249 | 234.249 Ground tests. | |
| 49:4.1.1.1.28.4.87.26 | SECTION 234.251 | 234.251 Standby power. | |
| 49:4.1.1.1.28.4.87.27 | SECTION 234.253 | 234.253 Flashing light units and lamp voltage. | |
| 49:4.1.1.1.28.4.87.28 | SECTION 234.255 | 234.255 Gate arm and gate mechanism. | |
| 49:4.1.1.1.28.4.87.29 | SECTION 234.257 | 234.257 Warning system operation. | |
| 49:4.1.1.1.28.4.87.30 | SECTION 234.259 | 234.259 Warning time. | |
| 49:4.1.1.1.28.4.87.31 | SECTION 234.261 | 234.261 Highway traffic signal pre-emption. | |
| 49:4.1.1.1.28.4.87.32 | SECTION 234.263 | 234.263 Relays. | |
| 49:4.1.1.1.28.4.87.33 | SECTION 234.265 | 234.265 Timing relays and timing devices. | |
| 49:4.1.1.1.28.4.87.34 | SECTION 234.267 | 234.267 Insulation resistance tests, wires in trunking and cables. | |
| 49:4.1.1.1.28.4.87.35 | SECTION 234.269 | 234.269 Cut-out circuits. | |
| 49:4.1.1.1.28.4.87.36 | SECTION 234.271 | 234.271 Insulated rail joints, bond wires, and track connections. | |
| 49:4.1.1.1.28.4.87.37 | SECTION 234.273 | 234.273 Results of inspections and tests. | |
| 49:4.1.1.1.28.4.88 | SUBJGRP 88 | Requirements for Processor-Based Systems | |
| 49:4.1.1.1.28.4.88.38 | SECTION 234.275 | 234.275 Processor-based systems. |