sort by Rank | Alpha
| Possible Meanings | Rank |
| Rigid Plastic Packaging Containers | ** |
| Real Photo Postcard California | ** |
| Rotterdam Port Promotion Council | ** |
| Regional Planning Policy Committee | ** |
| Real Photo Postcard by C | ** |
| Rafsanjan Pistachio Producers Cooperative | * |
| Research Project Planning Committee | * |
| Russian Public Policy Center | * |
| Research Priority and Planning Committee | * |
| Reversed Phase Paper Chromatography | * |
| RCRA Permit Policy Compendium | * |
| Regional Professional Practice Committee | * |
| Research Policy and Practice Committee | * |
| Real Property Protection Committee | * |
| Regional Picture of Pictou Count | * |