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| Acronym | Acronym Meaning | Additional Information |
|---|---|---|
| P | PCB(s) (CERFA specific) | |
| P | Probable (CERFA specific) | |
| P | Parel (CERFA specific) | |
| P&E | Propellants and Explosives | |
| P&T | Pump and Treat | |
| P2 | Pollution Prevention | |
| P4P2 | Partners for Pollution Prevention | |
| PA | Preliminary Assessment | |
| PA/SI | Preliminary Assessment/Site Invesstigation | |
| PA/VSI | Preliminary Assessment / Visual Site Inspection | |
| PAG | Pesticide Assignment Guidelines | |
| PAH | Polynuclear Aromatic Hydrocarbons | |
| PAI | Performance Audit Inspection (CWA) | |
| PAI | Pure Active Ingredient compound | |
| PAM | Pesticide Analytical Manual | |
| PAMS | Photochemical Assessment Monitoring Stations | |
| PARCC | Precision, Accuracy, Represntiveness, Comparability, Completeness | |
| Part A | Interim Status Permit (EPA RCRA Hazardous Waste) | |
| Part B | Final Approval Permit (EPA RCRA Hazardous Waste) | |
| PAT | Permit Assistance Team (RCRA) | |
| PATS | Pesticide Action Tracking System | |
| PATS | Pesticides Analytical Transport Solution | |
| Pb | Lead | |
| PBA | Preliminary Benefit Analysis (BEAD) | |
| PBB | Polybrominated Biphenyl | |
| PBR | Permit by Rule | |
| PBT | Persistent Bioaccumulative Toxics | |
| PC | Post Closure | |
| PCA | Principle Component Analysis | |
| PCA | Pentachloroanisole | |
| PCB | Polychlorinated Biphenyl(s) | |
| PCCP | Post-Closure Care Period | |
| PCDD | Polychlorinated DiBenzo-P-Dioxin | |
| PCE | Pollution Control Equipment | |
| PCE | Tetrachloroethene (PCE) | |
| PCE | Perchloroethylene | |
| pCi | picocurie | |
| PCM | Phase Contrast Microscopy | |
| PCN | Policy Criteria Notice | |
| PCO | Pest Control Operator | |
| PCP | Pentachlorophenol | |
| PCS | Permit Compliance System | |
| PCSD | President's Council on Sustainable Development | |
| PDCI | Product Data Call-In | |
| Portable, Downloadable File | ||
| PE | Professional Engineer | |
| PE | Performance Evaluation | |
| PEC | Potential Exposure Concentration | |
| PEL | Permissble Exposure Limit | |
| PEMS | Particulate Emission Monitoring System | |
| PFC | Perfluorated Carbon | |
| PFCRA | Program Fraud Civil Remedies Act | |
| PFS | Phased Feasibility Study | |
| PGI | Professional Geologists of Indiana | |
| pH | Hydrogen-ion Activity | |
| PHC | Principal Hazardous Constituent | |
| PHI | Pre-Harvest Interval | |
| PHSA | Public Health Service Act | |
| PI | Preliminary Injunction | |
| PI | Program Information | |
| PIC | Products of Incomplete Combustion | |
| PIC | Public Involvement Coordinator | |
| PID | Photoionization Detector | |
| PIGS | Pesticides in Groundwater Strategy | |
| PIMS | Pesticide Incident Monitoring System | |
| PIN | Procurement Information Notice | |
| PIN | Pesticide Information Network | |
| PIP | Potentially Impacted Parties | |
| PIP | Public Involvement Program | |
| PIPQUIC | Program Integration Project Queries Used in Interactive Command | |
| PIRG | Public Interest Research Group | |
| PIRT | Pretreatment Implementation Review Task Force | |
| PIT | Permit Improvement Team | |
| PITS | Project Information Tracking System | |
| PLIRRA | Pollution Liability Insurance and Risk Retention Act | |
| PLM | Polarized Light Microscopy | |
| PLUVUE | Plume Visibility Model | |
| PM | Particulate Matter | |
| PM | Permit Manager | |
| PM | Program Manager | |
| PM | Project Manager | |
| PM10 | Particulate Matter (nominally 10m and less) | |
| PM15 | Particulate Matter (nominally 15m and less) | |
| PM2.5 | Particulate Matter Smaller than 2.5 Micrometers in Diameter | |
| PMAS | Photochemical Assessment Monitoring Stations | |
| PMN | Premanufacture Notification | |
| PMNF | Premanufacture Notification Form | |
| PMR | Pollutant Mass Rate | |
| PMR | Proportionate Mortality Ratio | |
| PMRS | Performance Management and Recognition System | |
| PMS | Program Management System | |
| PN | Public Notification | |
| PNA | Polynuclear Aromatic Hydrocarbons | |
| PO | Project Officer | |
| POC | Perimeter of Compliance | |
| POC | Point Of Compliance | |
| POE | Point of Entry Treatment Device | |
| POE | Point Of Exposure | |
| POE | Point of Entry | |
| POGO | Privately-Owned/ Government-Operated | |
| POHC | Principal Organic Hazardous Constituent | |
| POI | Point Of Interception | |
| POL | Petroleum, oil, and lubricants | |
| POLREP | Pollution Report | |
| POM | Particulate Organic Matter | |
| POM | Polycyclic Organic Matter | |
| POP | Persistent Organic Pollutant | |
| POR | Program of Requirements | |
| POTW | Publicly Owned Treatment Works | |
| POU | Point of Use | |
| POU | Point of Use Treatment Device | |
| POV | Privately Owned Vehicle | |
| PP | Program Planning | |
| PPA | Planned Program Accomplishment | |
| PPB | Parts Per Billion | |
| PPC | Personal Protective Clothing | |
| PPE | Personal Protective Equipment | |
| PPG | Performance Partnership Grant | |
| PPIC | Pesticide Programs Information Center | |
| PPIS | Pesticide Product Information System | |
| PPIS | Pollution Prevention Incentives for States | |
| PPLS | Pesticide Product Label System | |
| PPM | Parts Per Million | |
| PPM/PPB | Parts per million/parts per billion | |
| PPMAP | Power Planning Modeling Application Procedure | |
| PPSP | Power Plant Siting Program | |
| PPT | Parts Per Trillion | |
| PPTH | Parts Per Thousand | |
| PQL | Pratical Quantitation Limit | |
| PQUA | Preliminary Quantitative Usage Analysis | |
| PR | Pesticide Registration Notice | |
| PR | Petroleum disposal or release (CERFA specific) | |
| PR | Preliminary Review | |
| PRA | Paperwork Reduction Act | |
| PRA | Planned Regulatory Action | |
| PRATS | Pesticides Regulatory Action Tracking System | |
| PRC | Planning Research Corporation | |
| PRI | Periodic Reinvestigation | |
| PRM | Prevention Reference Manuals | |
| PRN | Pesticide Registration Notice | |
| PRP | Potentially Responsible Party | |
| PRZM | Pesticide Root Zone Model | |
| PS | Petroleum Storage (CERFA specific) | |
| PS | Point Source | |
| PSAM | Point Source Ambient Monitoring | |
| PSC | Program Site Coordinator | |
| PSD | Prevention of Significant Deterioration | |
| PSES | Pretreatment Standards for Existing Sources | |
| PSI | Pollutant Standards Index | |
| PSI | Pounds Per Square Inch | |
| PSI | Pressure Per Square Inch | |
| PSIG | Pressure Per Square Inch Gauge | |
| PSM | Point Source Monitoring | |
| PSNS | Pretreatment Standards for New Sources | |
| PSU | Primary Sampling Unit | |
| PT | Pump and Treat | |
| PTDIS | Single Stack Meteorological Model in EPA UNAMAP Series | |
| PTE | Potential to Emit | |
| PTFE | Polytetrafluoroethylene (Teflon) | |
| PTMAX | Single Stack Meteorological Model in EPA UNAMAP series | |
| PTPLU | Point Source Gaussian Diffusion Model | |
| PV | Project Verification | |
| PVC | Polyvinyl Chloride | |
| PW | Potable Water | |
| PWB | Printed Wiring Board | |
| PWS | Public Water Supply/System | |
| PWSID | Public Water Supply Identification Number | |
| PWSS | Public Water Supply System | |
| PX | Post exchange | |
| PZ | Piezometer |
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