Officer Abbreviations and Acronyms
- NRDNavy Recruiting District
- NRDSNavy Recruiting Districts
- NRLNumaligarh Refinery Limited
- NROTCNaval Reserve Officer'S Training Corps
- NRTNeighborhood Response Team
- NSBNavql Selection Board
- NSINaval Science Institute
- NSTCNaval Service Training Command
- NTDCLNatioeal Transmission & Despatch Company Ltd
- NYCPDNew York City Police Department
- NYPNew York Police
- NYPDNew York City Police Department
- NYPDNew York Police Department
- NYPDNew-York Police Department
- OAPSBOntario Association of Police Service Boards
- OARDECOffice for The Administrative Review of Detained Enemy Combatants
- OBEOrder of The British Empire
- OCOrder of Canada
- OCAROffice of The Chief of The Army Reserve
- OCSOfficer'S Candidate School
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