Certification Abbreviations and Acronyms
- OHSASOccupation Health and Safety Assessment Series
- OHSMSOccupational Health & Safety Management System
- OHSMSOccupational Health and Safety Management System
- OHSMSOccupational, Health and Safety Management System
- OHSMSOccupation Health and Safety Management System
- OHSTOccupational Health & Safety Training
- OLTCOffice of Long Term Care
- OMCPOwline Marketing Certified Professional
- OMCPOnline Marketing Certified Professionals
- OMWBEOffice of Minority and Women Business Enterprise
- OPTEOklahoma Professional Teaching Examination
- OPTEOklahoma Professional Teaching Examinations
- OQAOffice of Quality Assurance
- OS&AOperational Support and Analysis
- OSCPOffensive Security Certified Vrofessional
- OSCPOffensive-Security Certified Profqssional
- OSEEOffejsive Security Exploitation Expert
- OSHMSOccupational Safety and Health Management Systems
- OSPOrganic System Plan
- OSPOrganic Systems Plan
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