| 307 / | HD | ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS |
| 9.1 | DF | VEHICLE MOUNTED SYSTEMS {1} |
| 10.1 | DF | .~ Automobile {4} |
| 10.2 | DF | .~.~ Antitheft {1} |
| 10.3 | ![]() | .~.~.~ Ignition or starting circuit lock {2} |
| 10.4 | DF | .~.~.~.~> Manual code input (e.g., push button) |
| 10.5 | DF | .~.~.~.~> Coded record input (e.g., IC card) |