NASA Abbreviations and Acronyms

1. RF
   Radio Frequency
2. RF
   Communications Support
3. RF
   Right Forward
4. RF-TK
   Radio Frequency Tracking
5. RFA
   Request for Action
6. RFA
   Rf Authorization
7. RFA
   Rf Authorization (frequency)
8. RFB
   Ready for Baseline
9. RFC
   Request for Change Revolution
10. RFC
    Radio Frequency Charts
11. RFD
    Requirements Formulation Document
12. RFE
    Request for Estimate
13. RFECP
    request for engineering change proposal
14. RFI
    Radio Frequency Interference
15. RFI
    Remote Facility Inquiry
16. RFL
    Reflect
17. RFO
    Request for Order
18. RFP
    Request for Proposal
19. RFP
    Requirements and Formulation Phase
20. RFPA
    Request for Proposal Authorization

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