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: RPG DEA AFOC MOS SSIX AGM WWFL 26143 SR EAD PET WTOR RM WWMD 23899