Acronym |
Definition |
| OIC | Officer In Charge |
| OLQ | On-Line Query |
| OM | Oman |
| OMAS | Official Mail Accounting System |
| OMSS | Organizational Management Staffing System |
| ON | Ontario (Canada) |
| ON | ONtario |
| OP | Optional Procedure Mailing System |
| OPF | Official Personnel Folder |
| OTR | Over-The-Road container |
| PA | Panama |
| PAF | Postal Address File |
| PAL | Parcel AirLift |
| PAL | Postal Answer Line |
| PAR | Program for Alcoholic Recovery |
| PAU | Platform Acceptance Unit |
| PAVE | Presort Accuracy Validation and Evaluation |
| PBC | Postal Business Center |
| PC | Postal Code |
| PC | Post Card |
| PCC | Postal Customer Council Program |
| PCD | Postcode |
| PCE | Postal Computing Environment |
| PCES | Postal Career Executive Service |
| PCM | Postal Commodity Machine |
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