| Echelon One | ||||
| Numbered Fleet | Force / Type Command [TYCOM] | Naval Forces | Echelon Two | |
| Task Force | Group | Wing | Naval Base / Naval Activities |
Echelon Three |
| Task Group | Flotilla | |||
| Task Unit | Squadron | Squadron | Station | Echelon Four |
| Task Element | Division | Facility | ||
| Ship | Detachment | |||
| Watch | Department | |||
| Section | Division | |||