U.S. Space Force (USSF) Space Based Interceptors (SBI) Request for Prototype Proposal (RPP) FA8819-25-9-1001

1. The United States Space Force (USSF) Space Systems Command (SSC) Space Combat Power (SZ) Program Executive Office is releasing Request for Prototype Proposal (RPP) FA8819-25-9-1001 for the USSF Space Based Interceptor (SBI) program. The Government intends to competitively award multiple fixed price Other Transaction Agreements (OTA) for the USSF SBI program in accordance with 10 USC 4022. In addition, the Government anticipates the awards will also incorporate Prize Competitions in accordance with 10 USC 4025. This courtesy Notice of Contract Action shall not be construed as an obligation on the part of the Government and does not commit the Government to making any awards. 2. ACCESS TO SOLICITATION DOCUMENTS The RPP Bidders Library is available upon request to eligible companies that are currently authorized to access unclassified export controlled technical data/critical technology on an equally favorable basis in accordance with DODI 5320.25. Companies must provide an approved DD Form 2345, Militarily Critical Technical Data Agreement, to demonstrate eligibility to receive the Bidders Library. Obtaining an approved DD Form 2345 is accomplished via the Defense Logistics Agency (DLA) Joint Certification Program at https://www.dla.mil/Logistics-Operations/Services/JCP/. Eligible companies can also optionally submit JWICS points of contact in order to receive the supplementary classified information shown during the USSF SBI Industry Day to further inform their contemplated approach. The Government s eligibility verification process will generally take 1-2 days. Following receipt of all required information, verification of an approved DD Form 2345, and access approval, the Government will provide further instructions directly with the RPP release, or when access approval is granted, whichever occurs later. Requests must be submitted by 8:00PM Pacific on 24 September 2025 due to response timelines in the Bidders Library. Requests received after the deadline will not be fulfilled. Eligible companies that are interested in competing for this effort may request the RPP Bidders Library by e-mailing all of the following information to SSC.SZ.SBI@spaceforce.mil. Potential subcontractors must identify the prime contractor they are working with. 2.1 Company Name and CAGE code (must match DD Form 2345) 2.2 Role (Prime, or subcontractor + identify the prime) 2.3 Two (2) Points of Contact for unclassified exchanges with Name, title, telephone, and email 2.4 (Optional) Two (2) Points of Contact for JWICS classified exchanges with Name and email 2.5 Copy of Approved DD Form 2345 While not a small business set-aside, responses from small and small disadvantaged businesses are highly encouraged. SSC s Small Business POCs can be reached at smallbus@spaceforce.mil. 3. USE OF NON-GOVERNMENT ADVISORS Interested parties are advised that the Government intends to use non-Government personnel for the review and analysis of any feedback submitted and the proposals. The Government intends to use Federally Funded Research and Development Contractors (FFRDC), Systems Engineering and Integration (SE&I), Systems Engineering and Technical Assistance (SETA), or SSC Acquisition and Financial Support (SAFS) contractors who support SSC to provide technical and acquisition advisory support for review and analysis of the feedback and proposals. Additional instructions will be provided with the RPP. Related Notices: Request for Information (RFI): SBI_RFI_June2025 https://sam.gov/opp/0e2c8bdac1704aafb3377aa92e3e01f6/view Pre-solicitation notice: SBI_PreNotice_August2025 https://sam.gov/workspace/contract/opp/d482cc90c2514047bd0835f9abf1dc9d/view

This is Amendment 1 to the subject RPP. The amendment is available in the Bidder's Library to offerors currently in the competition. This amendment is to make administrative changes. This amendment does not extend the proposal due date and does not provide an opportunity to submit new requests for the Bidders Library. This is NOT a request for proposals. Offerors currently within the competition are notified within the selection process. 1. The United States Space Force (USSF) Space Systems Command (SSC) Space Combat Power (SZ) Program Executive Office is releasing Request for Prototype Proposal (RPP) FA8819-25-9-1001 for the USSF Space Based Interceptor (SBI) program. The Government intends to competitively award multiple fixed price Other Transaction Agreements (OTA) for the USSF SBI program in accordance with 10 USC 4022. In addition, the Government anticipates the awards will also incorporate Prize Competitions in accordance with 10 USC 4025. This courtesy Notice of Contract Action shall not be construed as an obligation on the part of the Government and does not commit the Government to making any awards. 2. ACCESS TO SOLICITATION DOCUMENTS The RPP Bidders Library is available upon request to eligible companies that are currently authorized to access unclassified export controlled technical data/critical technology on an equally favorable basis in accordance with DODI 5320.25. Companies must provide an approved DD Form 2345, Militarily Critical Technical Data Agreement, to demonstrate eligibility to receive the Bidders Library. Obtaining an approved DD Form 2345 is accomplished via the Defense Logistics Agency (DLA) Joint Certification Program at https://www.dla.mil/Logistics-Operations/Services/JCP/. Eligible companies can also optionally submit JWICS points of contact in order to receive the supplementary classified information shown during the USSF SBI Industry Day to further inform their contemplated approach. The Government s eligibility verification process will generally take 1-2 days. Following receipt of all required information, verification of an approved DD Form 2345, and access approval, the Government will provide further instructions directly with the RPP release, or when access approval is granted, whichever occurs later. Requests must be submitted by 8:00PM Pacific on 24 September 2025 due to response timelines in the Bidders Library. Requests received after the deadline will not be fulfilled. Eligible companies that are interested in competing for this effort may request the RPP Bidders Library by e-mailing all of the following information to SSC.SZ.SBI@spaceforce.mil. Potential subcontractors must identify the prime contractor they are working with. 2.1 Company Name and CAGE code (must match DD Form 2345) 2.2 Role (Prime, or subcontractor + identify the prime) 2.3 Two (2) Points of Contact for unclassified exchanges with Name, title, telephone, and email 2.4 (Optional) Two (2) Points of Contact for JWICS classified exchanges with Name and email 2.5 Copy of Approved DD Form 2345 While not a small business set-aside, responses from small and small disadvantaged businesses are highly encouraged. SSC s Small Business POCs can be reached at smallbus@spaceforce.mil. 3. USE OF NON-GOVERNMENT ADVISORS Interested parties are advised that the Government intends to use non-Government personnel for the review and analysis of any feedback submitted and the proposals. The Government intends to use Federally Funded Research and Development Contractors (FFRDC), Systems Engineering and Integration (SE&I), Systems Engineering and Technical Assistance (SETA), or SSC Acquisition and Financial Support (SAFS) contractors who support SSC to provide technical and acquisition advisory support for review and analysis of the feedback and proposals. Additional instructions will be provided with the RPP. Related Notices: Request for Information (RFI): SBI_RFI_June2025 https://sam.gov/opp/0e2c8bdac1704aafb3377aa92e3e01f6/view Pre-solicitation notice: SBI_PreNotice_August2025 https://sam.gov/workspace/contract/opp/d482cc90c2514047bd0835f9abf1dc9d/view

***** Amendment 2 published 4 Oct 25 ***** This is Amendment 2 to the subject RPP. The amendment has been provided to offerors currently in the competition. This amendment is to make administrative changes to the Non-Government Advisor list only. This amendment does not extend the proposal due date and does not provide an opportunity to submit new requests for the Bidders Library. This is NOT a request for proposals. Offerors currently within the competition are notified within the selection process. ***** Amendment 1 published 30 Sep 25 ***** This is Amendment 1 to the subject RPP. The amendment is available in the Bidder's Library to offerors currently in the competition. This amendment is to make administrative changes. This amendment does not extend the proposal due date and does not provide an opportunity to submit new requests for the Bidders Library. This is NOT a request for proposals. Offerors currently within the competition are notified within the selection process. ***** BREAK ***** 1. The United States Space Force (USSF) Space Systems Command (SSC) Space Combat Power (SZ) Program Executive Office is releasing Request for Prototype Proposal (RPP) FA8819-25-9-1001 for the USSF Space Based Interceptor (SBI) program. The Government intends to competitively award multiple fixed price Other Transaction Agreements (OTA) for the USSF SBI program in accordance with 10 USC 4022. In addition, the Government anticipates the awards will also incorporate Prize Competitions in accordance with 10 USC 4025. This courtesy Notice of Contract Action shall not be construed as an obligation on the part of the Government and does not commit the Government to making any awards. 2. ACCESS TO SOLICITATION DOCUMENTS The RPP Bidders Library is available upon request to eligible companies that are currently authorized to access unclassified export controlled technical data/critical technology on an equally favorable basis in accordance with DODI 5320.25. Companies must provide an approved DD Form 2345, Militarily Critical Technical Data Agreement, to demonstrate eligibility to receive the Bidders Library. Obtaining an approved DD Form 2345 is accomplished via the Defense Logistics Agency (DLA) Joint Certification Program at https://www.dla.mil/Logistics-Operations/Services/JCP/. Eligible companies can also optionally submit JWICS points of contact in order to receive the supplementary classified information shown during the USSF SBI Industry Day to further inform their contemplated approach. The Government s eligibility verification process will generally take 1-2 days. Following receipt of all required information, verification of an approved DD Form 2345, and access approval, the Government will provide further instructions directly with the RPP release, or when access approval is granted, whichever occurs later. Requests must be submitted by 8:00PM Pacific on 24 September 2025 due to response timelines in the Bidders Library. Requests received after the deadline will not be fulfilled. Eligible companies that are interested in competing for this effort may request the RPP Bidders Library by e-mailing all of the following information to SSC.SZ.SBI@spaceforce.mil. Potential subcontractors must identify the prime contractor they are working with. 2.1 Company Name and CAGE code (must match DD Form 2345) 2.2 Role (Prime, or subcontractor + identify the prime) 2.3 Two (2) Points of Contact for unclassified exchanges with Name, title, telephone, and email 2.4 (Optional) Two (2) Points of Contact for JWICS classified exchanges with Name and email 2.5 Copy of Approved DD Form 2345 While not a small business set-aside, responses from small and small disadvantaged businesses are highly encouraged. SSC s Small Business POCs can be reached at smallbus@spaceforce.mil. 3. USE OF NON-GOVERNMENT ADVISORS Interested parties are advised that the Government intends to use non-Government personnel for the review and analysis of any feedback submitted and the proposals. The Government intends to use Federally Funded Research and Development Contractors (FFRDC), Systems Engineering and Integration (SE&I), Systems Engineering and Technical Assistance (SETA), or SSC Acquisition and Financial Support (SAFS) contractors who support SSC to provide technical and acquisition advisory support for review and analysis of the feedback and proposals. Additional instructions will be provided with the RPP. Related Notices: Request for Information (RFI): SBI_RFI_June2025 https://sam.gov/opp/0e2c8bdac1704aafb3377aa92e3e01f6/view Pre-solicitation notice: SBI_PreNotice_August2025 https://sam.gov/workspace/contract/opp/d482cc90c2514047bd0835f9abf1dc9d/view