Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym IRS (OC) is...

IRS (OC) is

  • International Relations Staff (OC)

IRS (OC) is also in:

Acronym Definition Searched: 78264 Z 92877 PQV OB EDT PMA RIA COLT HII BUS FINA BOWR WD ORD