| Abbreviation | Definition |
|---|---|
| IDL | Interactive Data Language |
| IDLH | Immediately Dangerous to Life and Health |
| IDMM | Intermediate and Depot Maintenance Manual |
| IDO | InterDivisional Operations |
| IDP | Integrated Data Processor |
| IDP | Interstellar Dust Particles |
| IDPS | Interface Digital Processor |
| IDR | Initial Design Review |
| IDR | Interim Discrepancy Report |
| IDR | Intermediate Design Review |
| IDRD | Information Definition Requirements Document |
| IDRD | Internal Data Requirement Description |
| IDS | Interface Data Sheet |
| IDS | Item Description Sheet |
| IDSD | Institutional Data System Division |
| IDSO | Interdivisional Sales Order |
| IDT | I-load Data Tape |
| IDTA | Inter-Divisional Technical Agreement |
| IDU | Interface Demonstration Unit |
| IDWA | Interdivisional Work Authorization |