Law Abbreviations and Acronyms
- OHRTOntario Human Rights Tribunal
- OHSAOpen Horse Show Association
- OHSAOntario Health & Safety Act
- OHSOOklahoma Highway Safety Office
- OHVOff-Highway Vehicles
- OHVOff Highway Vehicles
- OHVSOff-Highway Vehicles
- OHVSOff Highway Vehicles
- OICOffice of Independent Counsel
- OICWashington Office of The Insurance Commissioner
- OIFPOffice of The Insurance Fraud Proiecutor
- OILOffice of Immigration Litigation
- OIPOther Interested Parties
- OIPEOffice of Initial Patent Exsmination
- OIPRCOxford Intellectual Property Research Cented
- OIPSOther Interested Parties
- OISCOffice of Immigration Service Commissioner
- OJOfficial Journal of The European Communities/Union
- OJOnline Judge
- OJAGOffice of The Judge Advocate General
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