Amendment #2: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
| Agency | Department of Defense Department of the Air Force |
| Contracting office | Fa8735 Nuclear Ntw Div Afnwc Pzhn |
| Place of performance | Hanscom AFB, MA |
| Type of notice | Open for bids |
| Set-aside | No Set aside used |
| Response deadline | Jul 8, 2026 |
| Posted | May 21, 2026 |
| Solicitation number | FA8735-26-R-B001 |
| NAICS code | 541715, Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) |
Summary from the notice
**Update**...Some interested parties could not open the Interface Control Document (ICD) for the KGV-363 End Cryptographic Unit (ECU) document. This update provides an accessible version of this document. Access may still need to be requested as this document is Controlled Unclassified Information (CUI). Amendment #2 (19 May 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment updates Appendix 3 (Bidder’s Library Content List) of the FOPR and extends the proposal deadline to 8 July at Noon Eastern Time. The Unclassified Documents of the Bidder’s Library are now available to download. Please note that award eligibility remains strictly limited to AFLCMC/XA IDIQ Category 2 contract awardees. Amendment #1 (4 May 2026) for the Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) is now available. This update incorporates supplemental language into Section 3.4.1 Volume 1 Technical – Engineering and Section 3.4.2 (Volume 1 Technical - Logistics). Please be advised that eligibility for award is strictly limited to AFLCMC/XA IDIQ Category 2 contract awardees. Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization: - AFNWC/NC3's VLF Enterprise Program Office (EPO) is soliciting proposals from Industry for the design of a "common" advanced VLF (e.g., secure Beyond Line of Site comms of Emergency Actio…
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