Defense Acquisition Acronyms and Terms  (O)

O&M Operation and Maintenance
O&S Operations and Support (phase of the Defense Acquisition Management Framework and of the Business Capability Lifecycle (BCL)); also a Life Cycle Cost (LCC) Category
OA Obligation Authority; Operational Assessment
OASD Office of the Assistant Secretary of Defense
OB Operating Budget
OBE Overcome By Events
OCD Operational Concept Document (Air Force)
OCLL Office, Chief of Legislative Liaison (Army)
OCI Observable Critical Item
OCO Overseas Contingency Operations
OCP Observable Critical Process
OCR Office of Collateral Responsibility
OCSA Office of the Chief of Staff, U.S. Army
ODC Ozone Depleting Chemical
ODS Ozone Depleting Substance
OE Operational Effectiveness
OEM Original Equipment Manufacturer
OFPP Office of Federal Procurement Policy (Office of Management and Budget (OMB))
OGC Office of the General Counsel
OIPT Overarching Integrated Product Team
OJT On-the-Job Training
OLA Office of Legislative Affairs (Navy)
OM/A/N/AF/MC Operation and Maintenance (Appropriation), Army/Navy/Air Force/ Marine Corps
OMB Office of Management and Budget
OMIS Obsolescence Management Information System (Navy)
OMS/MP Operational Mode Summary/Mission Profile
ONR Office of Naval Research
OP/A/N/AF Other Procurement (Appropriation), Army/Navy/Air Force
OPEVAL Operational Evaluation (Navy)
OPM Office of Personnel Management
OPNAV Office of the Chief of Naval Operations
OPNAVINST OPNAV Instruction (Navy)
OPR Office of Primary Responsibility
OPSEC Operations Security
OPTEVFOR Operational Test and Evaluation Force (Navy)
ORLA Optimum Repair Level Analysis (See LOR/A (Level of Repair/Analysis))
OR/SA Operations Research/Systems Analysis
OS Open Systems; Operational Suitability
OSA Open Systems Architecture
OSD Office of the Secretary of Defense
OSE Open Systems Environment
OSHA Occupational Safety and Health Act; Occupational Safety and Health Administration
OSIA On-Site Inspection Agency
OSIP Operational System Integration Plan
OT Operational Testing
OT&E Operational Test and Evaluation
OTA Operational Test Agency
OTP Operational Test Plan
OTRR Operational Test Readiness Review
OUA Operational Utility Assessment
OUSD Office of the Under Secretary of Defense
OUSD(AT&L) Office of the Under Secretary of Defense (Acquisition, Technology and Logistics)
OV Operational Views

Hagan, G (2011) Glossary of Defense Acquisition Acronyms & Terms. Defense Acquisition University Press.  Fort Belvoir, VA., 22060

[via Defense Acquisition University]

Index of Acronyms

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