NASA Abbreviations and Acronyms

1. AAP
   Affirmative Action Program
2. AAP
   analog autopilot
3. AAS
   American Astronomical Society
4. AAS
   Abort Advisory System
5. AAS
   Advanced Antenna System
6. ACMA
   Army Class Managing Activity
7. ACMB
   Applications Configuration Management Board
8. ACN
   Ascension Island
9. ACN
   Acceptance Change Notice
10. ACP
    Airborne Command Post
11. ACP
    Alternate Command Plan
12. ACR
    Actual Cost Report
13. ACRS
    Accelerated Cost Recovery System (finance)
14. ACRS
    Advisory Committee on Reactor Safeguards
15. ACT
    Acquisition Coarse Tracker
16. ACT
    audio center transmission
17. ACT
    acquisition, control, and test
18. ACTS
    Acquisition Coarse Tracker Subsystem
19. ACTS
    (tos) Advanced Communications Technology Satellite
20. ACU
    Avionics Cooling Unit

Last updated: May 6, 2025 — Total entries: 14,020