| Abbreviation | Definition |
|---|---|
| PERT | Process Engineering Review Team |
| PERT | Program Evaluation and Review Technique |
| PERT | Public Employees' Retirement Trust |
| PERT-TAM | Program Evaluation and Review Technique - Task, Action, and Milestone items |
| PESS | Project Execution Support System |
| PEST | Political, Economic, Social, and Technical |
| PESTEL | Policy, Economy, Social, Technology, Environment, Legislation |
| PESTLE | Political, Economical, Social, Technological, Legal, and Environmental |
| PETA | People Excusing Terrorist Atrocities |
| PETS | Personal Electronic Testing System |
| PETS | Proposed Endangered Threatened Or Sensitive |
| PEU | Primary Energy Use |
| PEV | Program EValuator |
| PEX | Pesticide Exposure |
| PF | Preferred Form |
| PFB | Program For Belize |
| PFE | Protection From Evil |
| PFH | Preferred Facility Handbook |
| PFI | Postpone Funding Indefinitely |
| PFI | Public Finance Initiative |