What does FIR stand for?

Fabbrica Italiana Rele SpA (EFIS)

Fabrication Information Report (SAUS)

Faeroe-Iceland Ridge (SAUS)

Failed Item Report

Far Infrared

Far-Infrared Radiometer

Fast Information Retrieval (SAUS)

Fast Infrared - Computer science (FOTI)

Fast Infrared Communication (SAUS)

Fault Interrupt Routine (SAUS)

Fault Isolation Routine

Federation Internationale des Resistants - International Federation of Resistance Movements

Fellow of the Institute of Population Registration - British (DBQ)

Field Information Release (MCD)

Field Information Report - CIA

Field Intensity Receiver

Field Interrogation Record (SAUS)

Fiji Infantry Regiment (SAUO)

File Indirect Register

File Information Record (TIMI)

Films in Review - A publication (BRI)

Final Inspection Record - Army

Financial Inter-Relations Ratio

Financial Inventory Report

Finite Duration Impulse Response (SAUS)

Finite Impulse Response - Filter (MCD)

Finnish Reactor

Firan - Language code (ETLW)

Firearms International - NCIC firearms make code (NCIC)

Fired (MSA)

Firenza - NCIC car model code

Firenze Ximeniano - Florence - Italy - Seismograph station code, US Geological Survey (SEIS)

Firkin

First (SAUS)

First Citizens BancStock (SPSG)

First Citizens Bank Stock - AMEX symbol (SAG)

First City Trustco, Inc. - Vancouver Stock Exchange symbol

Fixed Interface Ratio (ACAE)

Flight Incident Recorder (SAUS)

Flight Information Region - FAA

Flight Information Report

Flight Information Requirement (NVT)

Flight Inspection Report (NG)

Floating-In Rates

flow indicated registrated (SAUS)

Flow Indicator Recorder - Electronics (ECII)

Fluids Integrated Rack (SAUS)

Fluorescent Ionic Resin (MCD)

Fold Increase in Resistance (DB)

Food Irradiation Reactor

Frente de Izquierda Revolucionaria - Peru

Freshwater Institute Report - United Nations

Fuel Indicating Reading - Aerospace (NAKS)

Fuel Indicator Reading (SAUS)

Full Indicator Reading

Full Inspection Report (MCD)

Functional Input Report (MCD)

Functional Item Replacement - Program - Navy (NG)

Future Issue Requirement

Marine Firefighters, Bellingham, WA - Manufacturer code for watercraft hull identification number (USCG)