| PROOF | Past Results Obstacles Outlook Feelings 
| Others |
| PROOF | Pasture Raised On Open Fields
| Others |
| PROOF | Pastured Raised On Open Fields
| Others |
| PROOF | Performance Repeatability Ongoing Oversight and Fit
| Others |
| PROOF | Portfolio Review Of Order Fulfilment
| Others |
| PROOF | Preaching the Reality Of Optical Faith
| Others |
| PROOF | Priority Reproducible Observable Operational Fitting
| Others |
| PROOF | Protected Online Filing
| Others |
| PROOF | Public Record Of Operations and Finance
| Others |