NAVY ENLISTED CLASSIFICATION CODE 8447 ULTRASOUND TECHNOLOGIST reads like a Personnel & Career, Training, Schools & Professional Military Education question — these are the publications that govern it in each branch:
| Publication | Branch | Title | Date | Status |
|---|---|---|---|---|
| OPNAVINST 1500.22J | Navy | COMMON MILITARY TRAINING PROGRAM | 2025-09-11 | Current |
| BUMEDINST 1221.4 | Navy | NAVY ENLISTED CLASSIFICATION CODE 8447 ULTRASOUND TECHNOLOGIST | 2015-07-14 | Rescinded / cancelled |
| BUMEDINST 1221.3A | Navy | NAVY ENLISTED CLASSIFICATION CODE 8450 MAMMOGRAPHY TECHNOLOGIST | 2025-02-07 | Current |
| OPNAVINST 1220.1F | Navy | CHANGING OR REMOVING NAVY ENLISTED CLASSIFICATION CODES FOR NUCLEAR PROPULSION PLANT PERSONNEL | 2021-10-06 | Current |
| MILPERSMAN 1221-021 | Navy | Navy Enlisted Classification (NEC) Code Award and Removal Procedures | — | Current |
| NAVADMIN 059/25 | Navy | IMPLEMENTATION OF NAVY ENLISTED CLASSIFICATION CODE N34Z IDENTIFYING SUBMARINE LEADING ENGINEERING LABORATORY TECHNICIAN QUALIFICATION | 2025-03-18 | Status unlisted |