| Rank | Abbreviation | Meaning |
|---|
| ***** | PIRP | Pre Importation Review Program
| |
| ***** | PIRP | Program on Information Program
| |
| ***** | PIRP | Point and Insurance Reduction Program
| |
| **** | PIRP | Participating Intermittent Resource Program
| |
| *** | PIRP | Program on Information Resources Policy
| |
| *** | PIRP | Preservation Interim Repositioning Program
| |
| *** | PIRP | Public Information Retrieval Protocol
| |
| *** | PIRP | Pass In Review Practice
| |
| *** | PIRP | PGE
| |
| *** | PIRP | Protease Inhibitor Response Project
| |
| *** | PIRP | Public Involvement Response Plans
| |
| ** | PIRP | Proposed International Reference Preparation
| |
| * | PIRP | Personality Integration Rehabilitation Program
| |
| * | PIRP | Prisons Infrastructure Redevelopment Program
| |
| * | PIRP | Philanthropy Information Retrieval Project
| |
| * | PIRP | Pace Investor Rights Project
| |
| * | PIRP | percutaneous interventional radiological procedures
| |