| Abbreviation | Definition |
|---|---|
| POSM | Protected Open Space Mapping |
| POWER | Phoenixville Operates With Environmental Responsibility |
| PPA | Pollution Prevention Act |
| PPAA | Pollution Prevention Assistance Account |
| PPAB | Pollution Prevention Advisory Board |
| PPBA | Pannonian Plant Biotechnology Association |
| PPC | Plastic Pollution Coalition |
| PPCB | Punjab Pollution Control Board |
| PPCC | Pondicherry Pollution Control Committee |
| PPCRS | Pilot Programme on Climate Resilience |
| PPCS | Power Plant Conceptual Study |
| PPD | Project Planning Device |
| PPER | Profile of Potential Environmental Risks |
| PPH | Photooxidants, Particles, and Haze |
| PPIC | Pollution Prevention Information Clearinghouse |
| PPIN | Pollution Prevention Information Network |
| PPNC | Prairie Park Nature Center |
| PPOD | Pollution Prevention and Open Dumps |
| PPP | Public-Private Partnership |
| PPPN | Pollution Prevention Project Narrative |