| 220 / | HD | RECEPTACLES |
| 565 | ![]() | STATIONARY TANK {5} |
| 566 | DF | .~> Toroidal (i.e., doughnut shaped) |
| 567 | DF | .~> Elevated (e.g., municipal water tank) |
| 567.1 | DF | .~> Underground |
| 567.2 | DF | .~> For petroleum or a petroleum product (e.g., oil, gasoline) |
| 567.3 | DF | .~> For hot water heater or boiler |