Enclosed is t JUSTIFICATION FOR OTHER THAN FULL AND OPEN COMPETITION USING SIMPLIFIED PROCEDURES FOR THE ACQUISITION OF COMMERCIAL PRODUCTS AND SERVICES (AUTHORITY: 41 U.S.C. 1901) for the Sole Source Indefinite Delivery, Indefinite Quantity (IDIQ) contract with the capability to award firm fixed price (FFP) delivery orders to Skyfora OY (Skyfora) for Skyfora StreamSonde dropsonde to include Operation and Technical Support Services.