IMPORTANT UPDATE: Effective 1 October 2025, SBIR/STTR program authorization has expired. New activity is paused; ongoing awards remain valid. Awardees are encouraged to contact their TPOCs and contracting officers with questions regarding active awards.

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Can a STTR Phase I be changed to SBIR in Phase II and vice versa?

Yes, a technology effort that starts as a STTR in Phase I can be changed to an SBIR for Phase II, or vice versa. The decision is made by the U.S. Air Force or U.S. Space Force based on the proposed research team and the work percentages for the follow-on effort. The small business must request the transfer ahead of time and receive approval from the awarding office. A specific point of contact for these requests may be provided in your solicitation. If a specific point of contact is not provided, you may contact afrl.rgv.SBIRSTTR@us.af.mil.

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