| Performance and Algorithms Research | Academic & Science |
| Performance As Research | Academic & Science |
| Participatory Action Research | Academic & Science |
| Photosynthetically Active Radiation | Academic & Science |
| Psychological Assessment Resources | Academic & Science |
| Photon Activity Rate | Academic & Science |
| Payable At Request | Accounts and Finance |
| Pre-authorized Remittance | Accounts and Finance |
| Public Accounting Report | Accounts and Finance |
| Pennsylvania Association of Realtors | Business |
| Phoenix Association of REALTORS | Business |
| Partially Fenced | Business |
| Psychological Assessment Resources, Incorporated | Business |
| Paige Adler Racing | Business |
| Peel Activities And Rehabilitation | Business |
| Problem, Action, Result | Business |
| Project Appropriate Request | Business |
| Coastcast Corporation | Business |
| Performance Audit Report | Business |
| Photosynthetic Active Radiation | Chemistry |
| Parks, Arts, and Recreation | Community |
| Parental Awareness and Responsibility | Community |
| Preparation, Assistance, and Reflection | Community |
| Participation, Attitude, and Responsibility | Community |
| Pride, Acceptance, Respect | Community |
| Personal Audio Recorder | Community |
| Peak to Average Ratio | Computer and Networking |
| Pixel Aspect Ratio | Computer and Networking |
| Privacy Act Release | Computing |
| Peer Assistance Review | Computing |
| Problem Application Report | Computing |
| Pdb Atom Record | Computing |
| Positive Acknowledgement with Retransmission | Computing |
| Project Authorization Request | Computing |
| Personal Access Reader | Computing |
| Physical Action Reaction | Computing |
| Print System Asynchronous Remote Protocol | Computing |
| Power Angle Regulation | Electronics |
| Parabolic Anodized Reflector | Electronics |
| Parameter File ( Fractint) | File Type |
| Parts Application (digitalk Parts) | File Type |
| Permanent Output File | File Type |
| Personal Achievement Record | General |
| Position of added responsibility | General |
| Planed All RoundBoth | General |
| Periodic Automatic Replenishment | General |
| People Against Rape | General |
| Pseudo Autosomal Regions | General |
| Performance Adherence Report | General |
| Prepare And Respond | General |
| Pulmonary Artery Reconstruction | General |
| Policy Activity Rebate | General |
| Photsynthetic Active Radiation | General |
| Policy Analysis and Review Committee | General |
| Pushed Authorization Requests | General |
| Parts Approved Request | General |
| Podzolization Active Regions | General |
| Parabolic Anodized Ring | General |
| Post Attack Recovery | General |
| Paytable And Reel | General |
| Partners in Asset Recovery | General |
| Predictive Analytics Reporting | General |
| Property Assessment Review | General |
| Protocol for Accommodations in Reading | General |
| Photosynthetically Available Radiation | General |
| Pennsylvania Advocacy and Resources | General |
| Pennsylvania Avenue Residence | General |
| Parabolic Aluminized Reflector | General |
| Professionals Advocates Resources | General |
| Peer Assistance and Review | General |
| Problem Action and Result | General |
| Plant A Row | General |
| People Against Reality | General |
| Pagan Association Of Red | General |
| Program for Alcoholic Recovery | General |
| Preventative Action Report | General |
| Public Access Route | General |
| Potential for Accident Reduction | General |
| Parteneriatul Auto Roman | General |
| Plaisir Auto Retro | General |
| Parabolic Suspension | General |
| Problem Action Results | General |
| Plan Attract and Retain | General |
| Public Administration Review | General |
| Portfolio Analysis Review | General |
| Preferential Arrival Route | Governmental |
| Police Accident Report | Governmental |
| Personnel Action Required | Governmental |
| Proven Acceptable Range | Governmental |
| Public Assessment Record | Governmental |
| Personnel Activity Reporting | Governmental |
| Pension Adjustment Reversal | Governmental |
| Problem Approach Resolution | Governmental |
| Police Area Representative | Governmental |
| PANDHURNA | Indian Railway Station |
| Partido Aragonés Regionalista | International |
| Programa de Apoyo al Repoblamiento y Desarollo de Zonas de Emergencia | International |
| Partido de Acci? Revolucionario | International |
| Partido Aragon? Regionalista | International |
| Partido de Acción Revolucionario | International |
| Performance Average Rating | Jobs |
| PostnAnasthetic Recovery | Medical |
| Post-Anesthesia Recovery | Medical |
| Pelvic Anterior Rotation | Medical |
| Project Acceptance Review | Messaging |
| Preliminary Appraisal Report | Messaging |
| Patient Accounting and Reporting | Military and Defence |
| Pulse Acquisition Radar | Military and Defence |
| Program Analysis Report | Military and Defence |
| Personnel Accountability Report | Military and Defence |
| Post Attack Reconnaissance | Military and Defence |
| Performance and Accountability Report | Military and Defence |
| Performance Assessment Report | Military and Defence |
| Population At Risk | Military and Defence |
| Pnni Augmented Routing | Networking |
| Partially Absorbed Or Reflected | Physics Related |
| Floor Area Ratio | Real Estate |
| Paint-activities Regulations | Real Estate |
| Pan Am Railway | Regional |
| Planning Action Request | Space Science |
| Precision Approach Radar | Space Science |
| Problem Accountability Record | Space Science |
| Problem Action Record | Space Science |
| Problem Action Request | Space Science |
| Product Acceptance Review | Space Science |
| Parabolic Aluminum Reflector | Space Science |
| Pro Action Replay | Sports |
| Points, Assists, and Rebounds | Sports |
| Play Allotment Rule | Sports |