| Designation | MIL-HDBK-421 |
| Status | Canceled |
| Last Update | 2018-05-26 |
| Last Document Update | 2013-06-06 |
| Publisher | Defense Standardization Program Office |
| FSG-02 |
| FSC-TCSS |
| Document Category |
| Department of Defense Handbook |
| Version | Date | Distribution Statement | Access | Pages |
|---|---|---|---|---|
| Notice 2 - Cancellation | 2013-06-06 | A | Public | 1 |
| Notice 1 - Validation | 2000-12-22 | A | Public | 1 |
| Base Document | 1991-05-17 | A | Public | 171 |
| Service | Organization | Code |
|---|---|---|
| Lead Standardization Activity | Defense Information Systems Agency (DISA) | DC1 |
| Preparing Activity | Defense Information Systems Agency (DISA) | DC1 |
| Air Force | Air Force Life Cycle Management Center - Electronic Systems | 13 |
| Army | US Army Combat Capabilities Development Command, C5ISR Center | CR |
| Navy | Naval Information Warfare Systems Command | EC |