Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym OPB (ORA) is...

OPB (ORA) is

  • Operations and Policy Branch (ORA)

OPB (ORA) is also in:

Acronym Definition Searched: WSE AJF MEOW TMDE IRC 29180 CDI JHM JCN NASI HIVSS 56143 LBC JR SEDC