Sole Source EOP Earth Momenta Services

This solicitation, numbered N0018926QL147, seeks Earth Orientation Parameter (EOP) Momenta Services in support of the U.S. Naval Observatory under Simplified Acquisition Procedures as authorized by FAR 12.102(a), with a proposed sole-source award to MCCARTHY DENNIS based on a redacted justification. The contract is classified under NAICS code 541990 with a small business size standard of $19.5 million in annual revenue, and the Government has determined that full and open competition is not required, though all responsible sources may submit quotes by the deadline of 11:00 AM EST on May 26, 2026. All submissions must be delivered electronically to Keisha Gordon-Blair at keisha.o.gordon-blair.civ@us.navy.mil and must include complete representations and certifications via SAM, current within the past 12 months, along with the vendor’s best firm fixed price terms, as the Government intends to evaluate quotes based on price reasonableness and technical approach, reserving the right to conduct a price-past performance tradeoff if necessary. The contract structure encompasses a base year from July 10, 2026, through July 9, 2027, with three optional one-year extensions through July 9, 2030, all performed at the U.S. Naval Observatory in Washington, D.C. The services involve collecting and analyzing EOP data from GPS and VLBI sources to support terrestrial-celestial axis orientation for military and spacecraft applications, including GPS operations. The contract incorporates a comprehensive set of applicable clauses under FAC 2026-01 and DFARS Publication Notice 20251110, including deviations for reporting biobased products, convict labor, DEI discrimination, security prohibitions, subcontracting standards, export control, detainee interrogation prohibitions, foreign-made unmanned aircraft systems, and combating trafficking in persons. Payment and invoicing must comply with Wide Area Workflow (WAWF) system requirements, with contractors required to submit Invoice 2in1 for services and cost vouchers for labor-hour or time-and-materials items, adhering to DFARS Appendix F for receiving reports. Offerors must provide Buy American–Balance of Payments Program certification and affirm compliance with Covered Defense Telecommunications Equipment restrictions, excluding any such equipment from performance. Quotes must remain firm for 30