sort by Rank | Alpha
| Possible Meanings | Rank |
| Ohio Association of Meat Processors | ** |
| Oregon Association of Mortgage Professionals | ** |
| Office of Acquisition Management Policy | ** |
| Office of AIDS Malignancy Program | ** |
| Operation Administration Maintenance and Provisioning | ** |
| Oklahoma Agriculture Mediation Program | ** |
| Operations Administration Maintenance Provisioning | ** |
| Ohio Apple Marketing Program | ** |
| On Aircraft Maintenance Planning | * |
| Office of Acquisition and Management Policy | * |
| Optical Aircraft Measurement Program | * |
| Operational Administration Maintenance and Provisioning | * |
| Oregon Association of Mounted Posses | * |
| Office of Administrative Management and Planning | * |