What does PRI stand for?

Farmington, MO - Location identifier - FAA (FAAL)

Independent Revolutionary Party (Dominican Rep.) - Political party (PSAP)

Institutional Revolutionary Party - Mexico - Political party

Pacific Research Institute for Public Policy (EA)

Pacific Resources, Inc. (EFIS)

Paici - Language code (ETLW)

Pain Rating Index

Paint Research Institute - Defunct (EA)

Paleontological Research Institution (EA)

Paleontological Research Institution/Museum of the Earth (EA)

Partial Response Impuls (SAUS)

Partido Revolucionario Institucional - Party of the Institutionalized Revolution - Mexico - Political party

Partito Repubblicano Italiano - Italian Republican Party - Political party (PPW)

Partner Relationship Inventory - Marital relations test - Psychology

Partnership for Rural Improvement - Washington (EDAC)

Peace Research Institute - Later, Institute for Policy Studies (EA)

Penal Reform International - United Kingdom (EAIO)

Performance Registry International

Performance Review Institutes

Periodic Reinvestigation (SAUS)

Permaculture Research Institute - Research center (RCD)

Perris, CA - Amtrak Busline code

Personal Reaction Index - Interpersonal skills and attitudes test

Personal Record Identifier - Treasury Board of Canada (FOTI)

Personal Resource Inventory (DB)

Personnel Research, Inc. - Information service or system (IID)

Personnel Research Institute Test (AEBS)

Petroleum Recovery Institute - Research center (RCD)

Phosphate Rock Institute - Defunct (EA)

Phosphoribose Isomerase - An enzyme (MAE)

Photographic Radar Intelligence

Photographic Reconnaissance and Interpretation (NATG)

Photo RADAR Intelligence

Pineapple Research Institute (SAUS)

Pineapple Research Institute of Hawaii (EA)

Pittsburgh Research Institute (SAUS)

Plains Resources Inc. (EFIS)

Planning Resources, Inc. - Commercial firm

Plan Repeater Indicator (IAA)

Plasticity Retention Index - Rubber test method

Plastics and Rubber Institute - Institution of the Rubber Industry and Pla stics Institute - Formed by a merger of (EAIO)

Policy Research Initiative - Research center (RCD)

Policy Research Institute - Research center (RCD)

Polymer Research Institute - University of Massachusetts - Research center (RCD)

Polymer Research Institute - Polytechnic Institute of New York - Research center (RCD)

Population Reference Intake (WDAA)

Port Railroads - Federal Railroad Administration identification code

Potomac Research, Incorporated

Practice Training Index

Praslin Island - Seychelles Islands - Airport symbol (OAG)

Pre-Ignition

Preliminary Rifle Instruction - Military

Prescriptive Reading Inventory

President of the Royal Institute (SAUS)

President of the Royal Institute (of Painters in Water Colours) - British (ROG)

President of the Royal Institution (London) (ROG)

President Regimental Institutes - British

Pressure Rate Index (SAUS)

Pressure Ratio Indicator (SAUS)

Prevention Routiere Internationale - International Road Safety Organization - Luxembourg (EAIO)

Priest - California - Seismograph station code, US Geological Survey (SEIS)

Primary (KSC)

Primary Path - Communications term (DCT)

Primary Rate, Inc.

Primary Rate Interface

Primary Rifle Instruction (SAUS)

Primary Winding (IAA)

Primate Research Institute - New Mexico State University - Hollman, NM

Prime Computer Inc., Corporation Library, Framingham, MA - OCLC symbol (OCLC)

Primer (IAA)

Princeps - NCIC firearms make code (NCIC)

Princess (automobile) - NCIC car model code

Princeville Airways, Inc. - ICAO designator (FAAC)

Printer Interface - Computer science (CIST)

Prinz - NCIC car model code

Priority (AFM)

Priority Repair Induction - Code

Priority Requirement for Information (AFM)

Prism - NCIC car model code

Prison

Prius - NCIC car model code

Private

Prize - or Prizeman - British (ROG)

Prizm - NCIC car model code

Processing Research Institute - Carnegie Mellon University

Procurement Resources, Inc. - Commercial firm

Production Rate Index (OA)

Production Records, Inc. (EA)

Production Records International (EA)

Program Interrupt - Computer science (IAA)

Program Revision Intent

Projection Readout Indicator - Aviation (OA)

Projector Rectile Image (SAUS)

Proteus Resources, Inc. - Vancouver Stock Exchange symbol

Prout Research Institute (EA)

Psoriasis Research Institute (EA)

Public Radio International

Public Relations Institute (SAUS)

Public Relations Institute of Ireland (BI)

Public Research Institute - San Francisco State University (RCD)

Puerto Rican Independence - Later, GPRG - An association (EA)

Puerto Rico - ANSI three-letter standard code (CNC)

Pulse Rate Increase - Medicine

Pulse Rate Indicator

Pulse Recurrence - or Repetition Interval (NATG)

Pulse Repetition Internal

Pulse Repetition Interval (CIST)

Pure Research Institute - Later, BRINC (EA)

Revolutionary Institution Party

Price's English Exchequer Reports - 1814-24 - A publication (DLA)

Price's English Mining Commissioners' Cases - A publication (DLA)

Priscianus - Authority cited in pre-1607 legal work (DSA)

Primary (IDOE)

Primate (ODA)