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P3Preservation, Packaging and Packing
P3Premeditated Personnel Parachuting
P3Perception and Performance Prototyper
P3Past President, President, President-Elect (IEEE Computer Society)
P3MHS X.419 Remote UA Access Protocol
P3Program Prioritization Profile
P3Pre-Planning Package
P3Norsk Rikskringkasting Program 3
P3Parallel Porting and Productizing
P3Precision Pulsed Plasma
P3Public-Private Partnership
P3Personalization Preparation Process
P3Pentium III
P3Platform for Privacy Preferences
P3Power of Three (Charmed)
P3Primavera Project Planner
P3Persona 3 (game)
P3Product, Price, Promotion (marketing analysis tool)
P3Preliminary Planning Process (US DoD)
P3Prue, Piper and Phoebe (TV show Charmed)
P3Parish Paths Partnership (UK)
P3Pharmaceuticals Partnership Program (Australia)
P3People Planet Profit (Colorado Business for Social Responsibility)