What does IRG stand for?

Immediate Replenishment Group (SAUO)

Immunoreactive Gastrin - Medicine (DMAA)

Immunoreactive Glucagon - Immunochemistry

Implicit Regeneration (SAUS)

Independant Regulators Group (SAUO)

Indian Resources Group (WDAA)

Industrial Reprocessing Group (SAA)

Inertial Rate Gyro (KSC)

Information Research Group (SAUO)

Information Resource Group - Information service or system (IID)

Information Retrieval Group (SAUO)

Infrared Generator

Initial Review Group - National Institutes of Health

Initial Review Groups (TPAL)

Inner Roll Gimbal (MCD)

Institut de Reescompte et de Garantie - Development bank - Belgium (EY)

Integrated Rate Gyro (SAUS)

Interagency Regulatory Group

Interagency Review Group - Nuclear Regulatory Commission (NRCH)

Interagency Review Group on Nuclear Waste Management (SAUS)

Intercommittee Recruitment Group (SAUO)

Interdepartmental Regional Group - Army (AABC)

Interest Rate Guarantee (NUMA)

Internationale des Resistants a la Guerre - War Resisters International - WRI - British (EA)

International Register (IAA)

International Research Group (SAUO)

International Research Group on Wear of Engineering Materials (PDAA)

International Research Group on Wood Preservation - Stockholm, Sweden (EAIO)

International Research Group on Wood Protection - Research center (RCD)

International Rogues Guild

Interrange Instrumentation Group (SAUO)

Inter-Record Gap - Computer science - Telecommunications (MCD)

Interrelationship Graph (PDAA)

Iron Range - Queensland - Airport symbol (AD)

Issues in Bank Regulation - A publication (SAUS)

Lockhart Rivers - Australia - Airport symbol (OAG)

Naft Air Lines - Iran - FAA designator (FAAC)

Regatta Enterprises Inc., Irvine, KY - Manufacturer code for watercraft hull identification number (USCG)