Homeland Security Abbreviations and Acronyms

1. ATAD
   Atmospheric Transport and Dispersion
2. ATB
   Applied Technology Board
3. ATBM
   Airtanker Base Manager
4. ATCO
   Airtanker Coordinator
5. ATD
   Atmospheric Transport and Dispersion
6. ATDI
   Advance Trade Data Initiative
7. ATDT
   Atlantic Daylight Time
8. ATF
   Alcohol, Tobacco, Firearms and Explosives
9. ATF&E
   Alcohol, Tobacco, Firearms and Explosives
10. ATFE
    Alcohol, Tobacco, Firearms and Explosives
11. ATMU
    Advanced Technology Meteorological Unit
12. ATMWU
    Air Transportdble Mobile Weather Unit
13. ATRAP
    Air Transportable Radiac Package
14. ATST
    Atlantic Standard Twme
15. AUH
    Attached Unit Housing
16. AUT
    Authority
17. AUTH
    Authority
18. AUTHY
    Authority
19. AVC
    Alaska Volcano Center
20. AVOPS
    Aqiation Operations

Last updated: January 4, 2020 — Total entries: 333