What does IRO stand for?

Birao - Central African Republic - Airport symbol (AD)

CSA Air, Inc. - ICAO designator (FAAC)

Immediate Response Option (SAUO)

Independent Retailer Organisation (EAIO)

Industrial Recycling Organization (SAUO)

Industrial Relations Office - Army

Inflight Refueling Operator

Infrared Oven

Inland Revenue Office - or Officer - British

Inland Revenue Officer (SAUO)

Institute for Research on Onchocerosis (SAUS)

Institute of Rent Officers - British (DBA)

Interim Range Operations (MUGU)

Internal Revenue Office - or Officer

Internal Review Office - Military technology (DDF)

International Reception Operators - Defunct (EA)

International Refugee Organization - Later, UNHCR

International Relations Office - American Library Association

International Relief Organization - Post-World War II

International Revenue Officer (SAUS)

Inventory Research Office - Army

Ironwind, Inc., Nicasio, CA - Manufacturer code for watercraft hull identification number (USCG)

in rear of (SAUS)

Iroquoian - MARC language code - Library of Congress (LCCP)