This is a Minimum Mandatory Requirements notice – Proposals are due by 3:00 P.M. Eastern Daylight Time on June 27, 2026. The U.S. Department of State (DOS), Bureau of Global Acquisitions, on behalf of the Bureau of Overseas Buildings Operations (OBO), has a requirement for Design-Build (D/B) Construction Services for a Utility Optimization Improvements project at the Existing New Embassy Compound in Monrovia, Liberia. The project is described below. OBO seeks to commission our nation's top constructors to produce facilities of outstanding quality and value. This acquisition is small business set aside subject to the Omnibus Diplomatic Security and Antiterrorism Act of 1986, as amended, 2025 NDAA § 7214, (Public Law 118-159) (“Omnibus Act”). This solicitation will consist of two phases: Phase I – Minimum Mandatory Requirements (MMRs) Phase 1 Proposal Request from Offerors for Eligibility Determination (see below); and Phase II – Request for Phase 2 Proposals (Technical and Price) from Eligible or Conditionally Eligible Offerors. This will be set aside for small businesses (SB). Added solicitation amendment and Omnibus Statement of Qualifications. See attachment for more details.