| Abbreviation | Definition |
|---|---|
| PDAP | Programmable Digital Autopilot |
| PDAP | rogrammable Digital Autopilot |
| PDB | Personal Daily Brief |
| PDB | Post-Deployment Build |
| PDB | President's Daily Briefing |
| PDB | Program Budget Decision |
| PDC | Point Defense Cannon |
| PDC | Power Distribution Center |
| PDCA | Plan, Do, Check, and Act |
| PDCA | Procurement Design Completion Assurance |
| PDD | Package Designation and Description |
| PDD | Passive Defense Drone |
| PDD | Presidential Decision Directive |
| PDD | Program Description Document |
| PDD | Project Definition Document |
| PDDA | Power Driven Decontamination Apparatus |
| PDDF | Presidential Decision Directive File |
| PDDG | Program Directive Development Group |
| PDE | Preliminary Data Element |
| PDES | Product Data Exchange Specification |