The Department of Homeland Security (DHS) Office of Health Security is conducting market research for a commercial air passenger travel data subscription to support biosurveillance efforts. The required data must enable quick queries of passenger volumes inbound to the U.S. or other countries from regions with biological events, including historical data for identifying seasonal trends. Responses to this Request for Information (RFI) are due by June 23, 2026, at 5:00 PM ET. No budget information is specified in the description. The location for performance of services is not explicitly stated, though the data would support DHS operations.