Solicitation
Amendment #10: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
FA8735-26-R-B001
Department of the Air Force, FA8735 Nuclear NTW Div Afnwc PZHN. Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology).
Response deadline
October 19, 2026 at 12:00 PM EDT
Closed 13 days ago. Posted September 3, 2026, first published April 13, 2026. Scheduled to archive November 3, 2026.
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Description
As published on SAM.gov.
Amendment #10 (3 September 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment updates the Proposal Submission Date to 19 October 2026 at Noon Eastern. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees.
Amendment #9 (12 August 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) - Extension of Submission Date and Solicitation of Industry Feedback to All Potential Offerors Regarding a Need for an Additional Potential Due Date Extension.
This notice is to formally announce the release of Amendment #9 to the Fair Opportunity Proposal Request (FOPR) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization effort, effective 12 August 2026.
This amendment enacts the following modifications:
- Proposal Submission Extension: The deadline for proposal submissions has been officially extended to 18 September 2026, at 12:00 PM Eastern Time.
- Inclusion of Artificial Intelligence (AI) in Evaluation: Section 6.1, "Basis of Award," of the FOPR has been updated to detail the Government's intended use of AI tools as part of the proposal evaluation process.
- Clarification to Industry Questions: The official response to Question #12 within the "Responses to Questions from Industry Spreadsheet" attachment has been revised.
- Call for Feedback on Submission Timeline:
The Government recognizes that these updates may impact proposal development. To ensure all potential offerors have adequate time to prepare a comprehensive and high-quality proposal, the Government is open to considering an additional extension to the submission deadline.
Interested parties who determine that more time is required are encouraged to submit a formal request for an extension, along with the potential reasons for the extension, to include technical areas driving the request for additional extension. All such requests must be submitted in writing to both Points of Contact (POCs) no later than Close of Business on 21 August 2026.
Please be advised that eligibility for this award remains restricted to AFLCMC/XA IDIQ Category 2 awardees.
We look forward to receiving your responses.
Amendment #8 (31 July 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment extends the Proposal Submission Date to 24 August 2026 at Noon Eastern to make changes for AI usage. Further information shall be provided on 3 August 2026. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees.
Amendment #7 (15 July 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment included more responses to questions from industry. Question 21 has been added to the Responses to Questions from Industry excel attachment. The Proposal Submission Date remains unchanged on 5 August 2026 at Noon Eastern. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees.
Amendment #6 (8 July 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment included more responses to questions from industry. Questions 18-20 have been added to the Responses to Questions from Industry excel attachment. The Proposal Submission Date remains unchanged on 5 August 2026 at Noon Eastern. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees
Amendment #5 (29 June 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment updates Section 2.0 (Proposal Preparation) of the FOPR document. The Proposal Submission Date remains unchanged on 5 August 2026 at Noon Eastern. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees.
Amendment #4 (8 June 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment updates the Proposal Submission Date to 5 August 2026 at Noon Eastern. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees.
Amendment #3 (28 May 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment updates the Bidder's Library, corrects SOW deficiencies, introduce a new contract clause, and incorporates formal responses to industry's questions. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees.
Updates:
- Industry Q&A: Incorporates responses to questions submitted by Industry.
- Bidder’s Library (Appendix 3): The Content List has been updated; unclassified documents are now available for download.
- SOW Incorporated a MIL-STD correction.
- Model Contract: Added clause RFO 52.222-90.
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 Action Messages thru all levels of conflict) capability that will modernize all legacy VLF NC3 airborne and ground-based VLF systems and equip future NC3 platforms with a Crypto Modernization-2 (CM2) compliant, New Waveform capable, NSA certified, and Open Mission Systems (OMS) capable "common, one-size-fits all" receiver system. The objective of this program is the rapid development of a production-ready, fully functional very low frequency receiver and its required ancillary support equipment.
This Fair Opportunity Proposal Request (FOPR) outlines the requirements for the submission of proposals for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Program. The Government intends to award to one or two Delivery Orders (DOs) based on best-value determination and the availability of funding. This competitive action is conducted in accordance with Revolutionary FAR Overhaul (RFO) 16.507. As orders under IDIQ contracts are not source selections, DoD source selection procedures do not apply. All ordering will be conducted IAW RFO 16.507 and the AFLCMC/XA IDIQ contract ordering procedures. All offerors must be awardees under Category 2 of the referenced AFLCMC/XA IDIQ to be eligible for consideration.
No award will be made under this solicitation until funds are available. The Government reserves the right to cancel this solicitation, either before or after the closing date. In the event the Government cancels this solicitation, the Government has no obligation to reimburse an offeror for any cost.
This is the public notice of the solicitation. The solicitation package contains Controlled Unclassified Information (CUI) and access will be restricted to Offerors who are certified by the Joint Certification Program (JCP).
Offerors shall provide their CAGE Code and identify all locations where classified information will be accessed, handled, or processed prior to receipt of classified documentation. This information shall be provided to the Contracting Officer no later than 20 April 2026 at 4:00 PM Eastern Time.
Attachments
Files listed on SAM.gov. The ones we hold a copy of download from here; the rest open SAM's download, which needs no account.
- DD2794_CVRi2_Development CSDR.xlsx112 KB, April 13, 2026
Publications
Every notice SAM.gov issued under this solicitation number, oldest first. Each is a separate record on SAM.
April 13, 2026
Solicitation
Common Very Low Frequency (VLF) Increment 2 (CVRi2) Modernization
Due July 1, 2026 at 4:00 PM EDT. SAM.gov, notice cadccf74a98046408105547d55a31833
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
- July 8, 2026: publish, solicitation
- June 29, 2026: publish, solicitation
- June 8, 2026: publish, solicitation
- May 28, 2026: publish, solicitation
- May 21, 2026: publish, solicitation
- May 19, 2026: publish, solicitation
- May 4, 2026: publish, solicitation
- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
April 15, 2026
Solicitation
Common Very Low Frequency (VLF) Increment 2 (CVRi2) Modernization
Due July 1, 2026 at 4:00 PM EDT. SAM.gov, notice 6cdb19ec2558419b870090b92475134e
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
- July 8, 2026: publish, solicitation
- June 29, 2026: publish, solicitation
- June 8, 2026: publish, solicitation
- May 28, 2026: publish, solicitation
- May 21, 2026: publish, solicitation
- May 19, 2026: publish, solicitation
- May 4, 2026: publish, solicitation
- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
April 21, 2026
Solicitation
Common Very Low Frequency (VLF) Increment 2 (CVRi2) Modernization
Due July 1, 2026 at 12:00 PM EDT. SAM.gov, notice 355d223938c3425299cf01b3f58dcc7a
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
- July 8, 2026: publish, solicitation
- June 29, 2026: publish, solicitation
- June 8, 2026: publish, solicitation
- May 28, 2026: publish, solicitation
- May 21, 2026: publish, solicitation
- May 19, 2026: publish, solicitation
- May 4, 2026: publish, solicitation
- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
May 4, 2026
Solicitation
Amendment #1: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due July 1, 2026 at 12:00 PM EDT. SAM.gov, notice 61e542fd92464e3aa0db3b2bb39221ca
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
- July 8, 2026: publish, solicitation
- June 29, 2026: publish, solicitation
- June 8, 2026: publish, solicitation
- May 28, 2026: publish, solicitation
- May 21, 2026: publish, solicitation
- May 19, 2026: publish, solicitation
- May 4, 2026: publish, solicitation
- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
May 19, 2026
Solicitation
Amendment #2: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due July 8, 2026 at 12:00 PM EDT. SAM.gov, notice 15839f9ad7814fab829b479456ea1884
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
- July 8, 2026: publish, solicitation
- June 29, 2026: publish, solicitation
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- May 28, 2026: publish, solicitation
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- May 4, 2026: publish, solicitation
- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
May 21, 2026
Solicitation
Amendment #2: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due July 8, 2026 at 12:00 PM EDT. SAM.gov, notice aa7246e2beff4e0aae5fb4dc3cdd931e
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
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- June 29, 2026: publish, solicitation
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- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
May 28, 2026
Solicitation
Amendment #3: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due July 8, 2026 at 12:00 PM EDT. SAM.gov, notice aeb3bedcab7a426caf4e17c6e28d5360
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
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- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
June 8, 2026
Solicitation
Amendment #4: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due August 5, 2026 at 12:00 PM EDT. SAM.gov, notice 34ec7961785a48ca870e1757748a0a6a
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
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- July 31, 2026: publish, solicitation
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- April 21, 2026: publish, solicitation
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- April 13, 2026: publish, solicitation
June 29, 2026
Solicitation
Amendment #5: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due August 5, 2026 at 12:00 PM EDT. SAM.gov, notice 2d9b34c94c2d4577a1608f1cb6489e46
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
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- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
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- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
July 8, 2026
Solicitation
Amendment #6: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due August 5, 2026 at 12:00 PM EDT. SAM.gov, notice 4a0cc34772974f729c8c51a4a9611d58
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
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- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
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- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
July 15, 2026
Solicitation
Amendment #7: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due August 5, 2026 at 12:00 PM EDT. SAM.gov, notice b0cd80397f924451a4b2856192c28b96
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
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- April 21, 2026: publish, solicitation
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- April 13, 2026: publish, solicitation
July 31, 2026
Solicitation
Amendment #8: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due August 24, 2026 at 12:00 PM EDT. SAM.gov, notice 5bb94ef7c91c4ee2b94caea36d4b2119
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
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- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
August 12, 2026
Solicitation
Amendment #9: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due September 18, 2026 at 12:00 PM EDT. SAM.gov, notice 2d57a6250eff483e9f28760575b0cb99
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
- July 8, 2026: publish, solicitation
- June 29, 2026: publish, solicitation
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- May 4, 2026: publish, solicitation
- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
August 12, 2026
Solicitation
Amendment #9: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
Due September 18, 2026 at 12:00 PM EDT. SAM.gov, notice 7673cd0e099a4f2599cc131fd988a705
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
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- April 21, 2026: publish, solicitation
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- April 13, 2026: publish, solicitation
September 3, 2026
Solicitation
Due October 19, 2026 at 12:00 PM EDT. SAM.gov, notice c32f74c7d7574a7796f3c23e7a8cee4a
15 revisions on SAM
- September 3, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- August 12, 2026: publish, solicitation
- July 31, 2026: publish, solicitation
- July 15, 2026: publish, solicitation
- July 8, 2026: publish, solicitation
- June 29, 2026: publish, solicitation
- June 8, 2026: publish, solicitation
- May 28, 2026: publish, solicitation
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- May 19, 2026: publish, solicitation
- May 4, 2026: publish, solicitation
- April 21, 2026: publish, solicitation
- April 15, 2026: publish, solicitation
- April 13, 2026: publish, solicitation
Points of contact
- Timothy Coittimothy.coit@us.af.mil
- Sarah Dumoulin-Minguetsarah.dumoulin-minguet@us.af.mil