Construction Abbreviations and Acronyms
- ODPOzone Depletion Potential
- ODSOzone Delpleting Substances
- OEOverhead Electric
- OEAOffice of the Employers' Advisory (for WCB)
- OEMOriginal Equipment Manufacturer (usually in reference to car parts)
- OESCOntario Electrical Safety Code
- OFOverflow
- OFOutside Face
- OFCOff-Formkconcrete
- OFCOff-Form Concrete
- OFCOntario Fire Code
- OFCCOhio Facilities Construction Commission
- OFCHOil-Fired Central Heating
- OFCIOwner Furnished, Contractor Installed
- OFEOOffice of Facilities Engineering and Operations
- OFFOff Street Parking
- OFLOntario Federation of Labour
- OFLOver-Flow Alamm
- OFSOil Fired Appliance Standard
- OFSOutside Face of Stud
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