Bid guide
How to bid on System Delta 84 Epoch 3 and 4 for the Dept of the Air Force
What the Air Force is buying and why it matters
The Department of the Air Force's Space Systems Command (SSC) is seeking industry feedback for Epochs 3 and 4 of its System Delta 84 (SYD 84/MT) Medium Earth Orbit (MEO) missile warning and tracking system. This system is crucial for supporting full warfighting capabilities related to missile warning and tracking.
The RFI aims to gather information to shape the acquisition strategy and technical approach for these future epochs. The MEO missile warning and tracking architecture is being developed incrementally, with each Epoch allowing for new technology and innovative solutions to meet evolving warfighter requirements. Vendors can provide feedback on space vehicles, delivery and operations, the MEO ground segment, or digital engineering integration.
Key dates and what happens at the deadline
This Request for Information (RFI) was published on June 16, 2026. The deadline for submitting your feedback is October 31, 2026, at 7:00 PM ET. All responses must be submitted by this time.
To receive the full RFI and supporting documents, you must first send an email to the government contacts with the subject line “MEO Epochs 3 & 4 RFI – (company name)”. Your response to the RFI itself will then be provided as instructed in those documents. This RFI is for planning purposes only and does not guarantee a future contract.
Who this opportunity suits
This opportunity is suitable for firms involved in research and development in physical, engineering, and life sciences, particularly those with expertise in space systems, missile warning and tracking technologies, ground segment operations, and digital engineering. The North American Industry Classification System (NAICS) code for this effort is 541715, with a small business size standard of 1,000 employees.
The government intends to use a Firm Fixed Price (FFP) contract type with an Other Transaction Authority (OTA) agreement for future work. Small businesses and small disadvantaged businesses are strongly encouraged to participate and provide insights into how they would incentivize small business involvement.
How to respond to this RFI
To access the full RFI and additional supporting documentation, you must send an email to the government points of contact. The subject line of your email must be “MEO Epochs 3 & 4 RFI – (company name)”.
In your initial email, include your organization’s name, parent company, mailing address, CAGE Code, Unique Entity Identification (UEI), point of contact name, telephone number, and email address. Indicate whether you are a prime or sub-role. If classified information is required, include a SIPR, JWICS, or comparable email address, and note that your organization must possess at least a Secret facility clearance.
Practical tips for a competitive RFI response
When preparing your response, focus on providing clear, concise, and relevant feedback that directly addresses the government's interest in Epochs 3 and 4 of the MEO missile warning and tracking system. Highlight your company's specific capabilities in space vehicles, ground segment, or digital engineering integration.
Since the government is considering a Firm Fixed Price (FFP) contract with an Other Transaction Authority (OTA), any feedback you can offer on this contracting approach, based on your experience, would be valuable. If you are a small business, emphasize your ability to meet the NAICS 541715 requirements and suggest ways to increase small business participation, including potential subcontracting opportunities.
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.