PIR Parachute Infantry Regiment
***** PIR Prescribed Investor Rate (New Zealand)
**** PIR Protein Identification Resource
*** PIR Partners in Injury Reduction (Alberta,Canada)
*** PIR Project Implementation Review (systems development methodology)
*** PIR Parents In Room (chat)
*** PIR Perception Is Reality
*** PIR Pierre,SD,USA - Pierre Municipal Airport (Airport Code)
*** PIR Potential Impact Radius (natural gas pipeline)
*** PIR Pittsburgh Industrial Railroad
** PIR Planned Independent Requirement
** PIR Post Incident Report (computer networking)
** PIR Project Initiation Report (information management)
** PIR Photo Interpretation Report
** PIR Problem Identification Report
** PIR Philippine Independence Ribbon
** PIR Portable ILS Receiver
** PIR Periodic Intelligence Review
** PIR Personnel Information Roster
** PIR Purchase Information Record
** PIR Photon Irradiance Response
* PIR Planned Inventory Retrieval
* PIR Problem Investigation Report
* PIR Product Ingredient Review (Consumer Specialty Products Association)
* PIR Pressure Ignition Rocket
* PIR Permanent Impairment Rate (worker's compensation)
* PIR Product Improvement Report
* PIR Proportional-Intensity-Reduction
* PIR Procurement Information Reporting
* PIR Provisional Integrated Rating
* PIR Preliminary Inspection Requirements
* PIR Primary Intelligence Requirement
* PIR Private Inspector-Residential (wastewater management)
* PIR Program Incident Report
* PIR Process Information Report
* PIR Planned Installation Report
* PIR Problem Investigation Request
* PIR Probabilistic Information Retrieval
* PIR Program Information Report
* PIR Project Implementation Report
* PIR Priority Information Requirements
* PIR Priority Intelligence Requirement
* PIR Private Information Retrieval (cryptography protocol/concept)
* PIR Paducah International Raceway (Kentucky; est.1972)
* PIR Price Is Right (TV show)
* PIR Project Interim Report (various organizations)
* PIR Property Inspection Report
* PIR Property Irregularity Report (reporting lost/damaged luggage at an airport)
* PIR Public Infrastructure Renewal (Canada)
* PIR Public Interest Registry
* PIR Public Interest Review
* PIR Protein Information Resource
* PIR Protocol Independent Routing
* PIR Pocono International Raceway
* PIR Police Initial Recruitment Test (UK; also seen as PIRT)
* PIR Polyisocyanurate
* PIR Portland International Raceway (Portland,OR,USA)
* PIR Position in Range
* PIR Post Implementation Review
* PIR Post(-mortem) Incident Review
* PIR Practitioner-in-Residence (various organizations)
* PIR Perpetual Inventory Record
* PIR Philadelphia International Records (record label; est.1971)
* PIR Phillips Investment Resources
* PIR Phoenix International Raceway
* PIR Periodic Inspection Report (electrical report; UK)
* PIR Partners in Reading (education)
* PIR Partners in Rhyme (music)
* PIR Pass In Review (military)
* PIR Passive Infrared
* PIR Peak Information Rate (frame relay)
* PIR Pediatrics in Review (American Academy of Pediatrics)