The Department of the Air Force is seeking information from qualified vendors regarding the assessment and characterization of geologic hydrogen resources at military installations within the continental United States (CONUS) and outside the continental United States (OCONUS). The objective of this Request for Information (RFI) is to evaluate the feasibility of a competitive solicitation for prototyping the assessment of geologic hydrogen resource availability, extractability, and economic viability, driven by the need for resilient and clean energy sources to support mission continuity. Interested parties are encouraged to provide insights on characterization techniques, resource evaluation processes, and potential sites, with responses due by October 25, 2024. For further inquiries, vendors may contact Kristina Botelho at kristina.botelho@us.af.mil.