Miami, FL - Location identifier - FAA (FAAL)
Object Persistence Framework
Official Personnel File (MCD)
Official Personnel Folder - Military
One-Piece Folder - Publishing (WDMC)
Open-Pore Foam - Plastic
Operations Flight - Military
Optical Propagation Facility
Orbiter Processing Facility - NASA (NASA)
Osmium Potassium Ferrocyanide (SAUS)
Output Filter (SAUS)
Overseas Project Fund - British Overseas Trade Board (DS)
Learn more about OPF