What does OGM stand for?

Office of Grants Management - Public Health Service

Office of Guided Missile (IAA)

Ontonagon, MI - Location identifier - FAA (FAAL)

Optimum Gradient Method

Ordinary General Meeting

Organic Gaseous Mercury - Environmental chemistry

Outgoing Message - Telecommunications

Outgrowth Medium - Microbiology (DAVI)

Outside Gage Marks (SAA)