Acronyms Used in Government Contracting (O)

Master list of the most frequently used government contracting acronyms. These acronyms and abbreviations are routinely used in government solicitations. You will also encounter these acronyms throughout the various sections of government contracts. This master list of acronyms will help you better understand the specialized language of government contracting. This is essential for successfully doing business with the Department of Defense (DoD) and working with contracting offices at military bases and DoD agencies.  You can also use our Glossary of defense contracting terms.


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View GLOSSARY of Contracting Terms

O&M   Operation and Maintenance
O&S   Operations and Support 
OA   Obligation Authority
OA   Operational Assessment
OASD   Office of the Assistant Secretary of Defense
OB   Operating Budget
OBE   Overcome by Events
OCD   Operational Concept Document (Air Force)
OCI   Observable Critical Item
OCO   Overseas Contingency Operations
OCP   Observable Critical Process
OCR   Office of Collateral Responsibility
OCR   Optical Character Recognition
ODC   Other Direct Cost 
ODS   Ozone Depleting Substance
OE   Operational Effectiveness
OEM   Original Equipment Manufacturer
OFPP   Office of Federal Procurement Policy 
OGC   Office of the General Counsel
OIPT   Overarching Integrated Product Team
OJT   On-the-Job Training
O&M   Operations and Maintenance
OMB   Office of Management and Budget
OMIS   Obsolescence Management Information System (Navy)
ONR   Office of Naval Research
OPEVAL   Operational Evaluation 
OPM   Office of Personnel Management
OPNAV   Office of the Chief of Naval Operations
OPR   Office of Primary Responsibility
OPSEC   Operations Security
OPTEVFOR   Operational Test and Evaluation Force
OR/SA   Operations Research / Systems Analysis
OS   Open Systems
OS   Operational Suitability
OSA   Open Systems Architecture
OSBP   Office of Small Business Programs
OSD Office of the Secretary of Defense
OSE   Open Systems Environment
OSHA   Occupational Safety and Health Act
OSHA   Occupational Safety and Health Administration
OSIA   On-Site Inspection Agency
OSIP   Operational System Integration Plan
OT   Operational Test or 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) 


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