| Designation | UL521 |
| Status | Active |
| Last Update | 2024-06-27 |
| Last Document Update | None |
| Publisher | Defense Standardization Program Office |
| FSG-63 |
| FSC-6350 |
| Document Category |
| Underwriters Laboratories (UL) |
| Version | Date | Distribution Statement | Access | Pages |
|---|---|---|---|---|
| Notice - Adoption, Tier 2 | 1994-10-03 | A | Public | 1 |
| Service | Organization | Code |
|---|---|---|
| Lead Standardization Activity | US Army Combat Capabilities Development Command, C5ISR Center | CR4 |
| Preparing Activity | US Army Combat Capabilities Development Command, C5ISR Center | CR4 |
| Air Force | Air Force Life Cycle Management Center - Item Reduction Support | 99 |
| Army | US Army Combat Capabilities Development Command, C5ISR Center | CR4 |
| Navy | Naval Sea Systems Command (Ship Systems) | SH |