| 434 / | HD | EDUCATION AND DEMONSTRATION |
| 219 | | OCCUPATION {8} |
| 220 | DF | .~> Air traffic control |
| 221 | DF | .~> Audiometry |
| 222 | DF | .~> Code communication {1} |
| 224 | DF | .~> Electricity or electronics |
| 225 | DF | .~> Dairying, farming, ranching, or other occupation involving care of plants or animals |
| 226 | DF | .~> Fire fighting |
| 227 | DF | .~> Keyboard operation (e.g., typing, key punching, etc.) {5} |
| 234 | DF | .~> Soldering or welding |