Federal Alternative Acquisition Authorities
One hub for OTA, CSO, and Alternative Acquisition Authorities
Statutes, regulations, policy, guidance, and case law for Other Transactions, Commercial Solutions Openings, and every alternative acquisition authority — organized in one place.
Latest News
Improving Federal Education Research and Development Through Other Transactions Authority
July 9, 2026
See all News
Announcements, RFP notices, and timely items on OT, CSO, and alternative acquisition authorities.
View all News →Recent Analysis
Newest Resources
Acquisition Strategy Discussion Checklist for OT
Acquisition Strategy Discussion Checklist for OT
FY22 Director, Operational Test & Evaluation report
FY22 Director, Operational Test & Evaluation report
Report No. DODIG-2022-073 Audit of DoD Hotline Allegations Concerning the DoD Ordnance Technology Consortium Award Process (March 2022)
Report No. DODIG-2022-073 Audit of DoD Hotline Allegations Concerning the DoD Ordnance Technology Consortium Award Proce
Other Transactions/Innovation/Grants/SBIR
Other Transactions/Innovation/Grants/SBIR
An analysis of the Department of Defense’s use of other transaction authority (10 U.S.C. 2371)
An analysis of the Department of Defense's use of other transaction authority (10 U.S.C. 2371)
Explore the full Resource Library
Filter by authority, type, agency, topic, status & fiscal year.
Open Library →Browse by Authority
Broad Agency AnnouncementCivil Works OTCommercial Solutions OpeningConstruction & Repair OTCooperative Agreements / GrantsOther TransactionsOther-Agency OT (non-DoD)Partnership Intermediary AgreementPrize Competitions / ChallengesProcurement for Experimental PurposesProduction OTPrototype OTResearch OTSBIR / STTR