Other transaction authority (OTA)

An other transaction (OT) agreement is flexible by design: the parties negotiate terms on intellectual property, payment milestones and reporting that a FAR contract would fix by clause. The FAR and DFARS do not apply, though agencies publish their own OT guides and some statutory conditions still do.

Prototype OTs under 10 U.S.C. 4022 generally require significant participation by a nontraditional defense contractor or small business, or a cost share, among other conditions. Many OTs are awarded through consortia: an organization holds a base agreement with the agency and runs project competitions among its members.

OT solicitations often start with a short white paper or a pitch, then a request for a prototype proposal from the companies selected. They may be posted on SAM.gov, on a consortium's own site, or on an agency portal, so joining the relevant consortium is often the practical way in.

The proposal rules come from the call itself, not Section L. Read it as carefully as an RFP: page limits, evaluation criteria and the milestones you propose become the agreement. A successful prototype can support a noncompetitive follow-on production contract or transaction when the original call said so.