| Acronym | Meaning |
 | PRACA | Problem Reporting And Corrective Action |
| PRB | Panel Review Board |
| PRB | Parachute Refurbishment Building |
| PRB | PasoRobles(TACANStation) |
| PRB | Project Review Board |
| PRC | People'sRepublic Of China (Payload) |
| PRC | People'sRepublic Of China Satellite |
| PRC | PlanningResearchCorporation |
| PRCA | ProblemReporting And Corrective Action |
| PRCB | ProgramRequirementsChangeBoard |
| PRCB | ProgramRequirementsControlBoard |
| PRCB | ProgramReview Control Board |
| PRCBD | ProgramRequirementsControl Board Directive |
| PRCBD | ProgramReview Control Board Directive |
| PRD | PersonalRadiation Dosimeter |
| PRD | ProcurementRequirementsDocument |
| PRD | Procurement Regulation Directive |
| PRD | Program Requirements Documents (UDS) |
| PRE | Personal Rescue Enclosure |
| PRE-MOD | Premodulation |
| PREAMP | Preamplifier |
| PREF | Preference |
| PREFLT | Preflight |
| PREL | Preliminary |
| PREP | Preparation |
| PREP | Prepare |
| PRES | Present |
| PRESS | Pressurant |
| PRESS | Pressure |
| PREV | Previous |
| PREVLV | Prevalve |
| PRF | Parachute Refurbishment Facility |
| PRF | Pulse Repetition Frequency |
| PRI | Primary |
| PRIM | Primary |
| PRL | Page Revision Log |
| PRL | Priority Rate Limiting |
| PRL | Priority Rate Limiting |
| PRM | Payload Retention Mechanism |
| PRM | Posigrade Rocket Motor |
| PRM | Pulse Rate Modulation |
| PRN | Program Release Notice |
| PRN | Pseudo-Random Noise |
| PRN | Pulse Range Navigation |
| PRO | Proceed |
| PROB | Problem |
| PROC | Processor |
| PROC | Procedure |
| PROC | Procurement |
| PROG | Program |
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