What does Itr stand for?

Iterationszahl (SAUS)

Australian Income Tax Reports - A publication (DLA)

Department of Industry (SAUS)

Ignition Test Reactor (MCD)

Improved Tanar Retrofit (SAUS)

Improved Tartar Retrofit - Missile (MCD)

Improved Terrain Representative - Military technology (DDF)

Income Tax Regulations (FOTI)

Income Tax Reports - India - A publication (DLA)

In-Core Thermionic Reactor - Nuclear energy

In-Core Thermionic Record (SAUS)

Incremental Tape Recorder

Independent Tank Regiment (SAUS)

Independent Technical Review (SAUO)

Indiana Toll Road (SAUS)

Indian Tax Reports - A publication (ILCA)

Individual Training Record - Military

Indoor Testing Range - Golf

Industrial Target Report - Later, IDR - British - World War II

Industrial Tribunal Reports (DCTA)

Infantry Training Regiment (SAUO)

Infantry Training Replacement

Informal Training Review (SAUO)

Information Technology Research - Waltham, MA - Telecommunications (TSSD)

Information Technology Resources (SAUO)

Initial Training Requirement

Initial Trouble Report (IAA)

Inlet Temperature Rise

Inspection Test Report

Institute Technical Reports (SAUO)

Instrumentation Tape Recorder

Instrumented Test Range - Fort Huachuca, AZ - United States Army Electronic Proving Ground (GRD)

Instrument Test Rig - Liquid Metal Engineering Center - Energy Research and Development Administration (IEEE)

In-Tank Reservoir - Automotive engineering

Integrated Technology Rotor

Integrated Telephone Recorder - Telecommunications (TEL)

Integrated Test Range (SAUS)

Integrated Test Requirements

Integrated Thyristor Rectifier (IAA)

Integrated Tourism Resort

Integrated Trans Ntwk Grp. - AMEX symbol (SPSG)

Intelcom Group - AMEX symbol (SPSG)

Intense Thermal Radiation

Interactive Teleprocessing System (SAUS)

Interactive Text Processing System (SAUS)

Intergrated Test Requirements (SAUS)

Interim Technical Report

Interim Test Report

Internal Technical Report

Internal Throughput Rate (SAUS)

International Trade Reporter - A publication (SAUS)

Internet Talk Radio (SAUO)

Interstate Transport Region

In-Transit Rendezvous

Intraocular Tension Recorder

Intra-Team Radio (SAUS)

Intratracheal - Medicine

Inverse Time Relay (KSC)

Inverted Terminal Repeat - Genetics

Invitation to Register (ADA)

Ion Transfer Reaction (SAUS)

Iowa Terminal Railroad - Federal Railroad Administration identification code

Irish Term Reports, by Ridgeway, Lapp, and Schoales - A publication (DLA)

Isolation Test Routine (IAA)

Iteri - Language code (ETLW)

ITR Airlines, Inc. (SAUO)

Royal Boat Company LLC, Daleville, AL - Manufacturer code for watercraft hull identification number (USCG)