SSS

Single Source Selection refers to an acquisition approach where the government identifies and negotiates with only one contractor without competitive procedures. SSS requires justification demonstrating why competition is not feasible or appropriate, such as unique capabilities, urgent requirements, or statutory authority.

Single source selections must comply with FAR requirements for other than full and open competition, including approval at appropriate authority levels based on contract value. Contractors receiving single source awards should understand the justification basis and ensure performance supports continued sole source relationships. SSS differs from sole source in some agency usage, though the terms are often used interchangeably.