Bid guide
How to bid on System Delta 84 Missile Warning/Tracking Epoch 3 and 4 for DEPT of Defense
What the agency is buying and why it matters
The Space Systems Command (SSC) is seeking industry feedback for the production and operation of Epoch 3 and Epoch 4 layers of a resilient Medium Earth Orbit (MEO) missile warning and tracking system. This system is crucial for supporting full warfighting capabilities related to missile defense.
This is a Request for Information (RFI), not a direct solicitation for bids. The government is gathering information to shape its acquisition strategy and technical approach for future procurements. Your input can influence how this significant project moves forward, covering aspects like space vehicles, ground segment operations, and digital engineering integration.
Key dates and what happens at the deadline
The deadline for responses to this RFI is December 01, 2026, at 7:00 PM ET. This is the final date for submitting your feedback to the government.
Since this is an RFI, no contract will be awarded directly from these submissions. Instead, the government will use the received information to refine its plans for future solicitations related to the MEO missile warning and tracking system.
Who this opportunity suits
This opportunity is suitable for firms with expertise in space vehicle delivery, integration, and operations, as well as those specializing in ground segment development for satellite constellations, including command and control. Companies with strong capabilities in digital engineering integration are also encouraged to respond.
The North American Industry Classification System (NAICS) code for this effort is 541715, Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology), with a small business size standard of 1,000 employees. Small and small disadvantaged businesses are encouraged to participate and provide recommendations on increasing small business involvement.
How to respond
To receive the full RFI and supporting documents, you must first send an email to the government points of contact. The subject line of your email should be “MEO Epochs 3 & 4 RFI – (your company name)”.
In your email, include your company's name, mailing address, CAGE Code, Unique Entity Identification (UEI), point of contact details (name, phone, email), and whether you intend to be a prime or sub-contractor. If you are a prime, identify how your firm meets 10 U.S.C. §4022 (A, B, or C). If you are a sub, identify your capacity and potential prime partnerships. Classified information requires a Secret facility clearance and a SIPR, JWICS, or comparable email address.
Practical tips for preparing a competitive response
When preparing your response, clearly address the specific areas of interest outlined by the Space Systems Command: Epochs 3 & 4 Space Vehicles, MEO Ground segment, and Digital Engineering Integration. Provide concrete examples of your capabilities and experience in these areas.
Consider the government's stated intent to use Firm Fixed Price (FFP) contracts with an Other Transaction Authority (OTA) agreement. If you have feedback on this approach, include it in your response. Also, actively consider and propose ways to incentivize small business participation, as this is an area the government is specifically interested in.
Ensure all required company information is accurately provided in your initial contact email. For classified materials, confirm your facility clearance and provide the necessary secure email address or make arrangements for physical distribution well in advance of the deadline.
See the live bid — deadline, agency details, and how to respond
Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.
View this bid on BiddingSimpleThis guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from DEPT of the Air Force; the original posting controls.

