Governmental & Military Abbreviations and Acronyms

1. IRR
   Ionising Radiation Regulations
2. IRR
   Individual Ready Reserve
3. IRR
   Tara Air Line
4. IRR
   Integral Rocket Ramjet
5. IRRAS
   Infrared Reflection Absorption Spectroscopy
6. IRRAS
   Integrated Reliability and Risk Analysis System
7. IRREG
   Irregular
8. IRRI
   International Rice Research Institute
9. IRRP
   Integrated Regional Resource Planning
10. IRS
    Internal Revenue Service
11. IRS
    Inertial Reference System
12. IRS
    Independent Rear Suspension
13. IRS
    Infared Suppressor
14. IRS
    Interface Requirements Specification
15. IRS
    U.S. Internal Revenue Service
16. IRSA
    Independent Railway Supervisors Association
17. IRSP
    Irish Republican Socialist Party
18. IRSS
    Indian Remote Sensing Satellite
19. IRSSP
    Interactive Remote Sensing Software Package
20. IRST
    Infrared Search and Track System

Last updated: May 24, 2020 — Total entries: 74,797