The subscription period of performance will run from 1 JAN 2025 to 31 DEC 2025. This subscription will be purchased with FY25 3600 DoD Funds.The proposed effort covered by this individual Justification and Approval is an amendment to add three twelve-month option years to contract FA2396-24-P-B031 for the IOPscience research literature database, which hosts IOP Publishing content. The AFRL Library Council has a requirement for an online physics literature database that meets the laboratory's mission to "lead the discovery, development, and integration of warfighting technologies for our air, space and cyberspace forces." The AFRL libraries support civilian, contractor, and military personnel, primarily scientists and engineers (S&Es), assigned to the eight AFRL technical directorates which include Aerospace Systems, Airman Systems, Directed Energy, Information, Materials and Manufacturing, Munitions, Sensors, and Space Vehicles and the Air Force Office of Scientific Research (AFOSR). The AFRL libraries provide research materials, including databases, electronic books, journals and other services, to all AFRL S&Es. The AFRL Library Council is a consortium that exists to create partnerships among the libraries at the various sites hosting AFRL elements. The different locations are Arlington, VA, Edwards AFB, Eglin AFB, Fort Sam Houston, Kirtland AFB, Rome Research Site, and Wright-Patterson AFB. They cooperatively acquire materials that are made available to civilian, contractor, and military employees across the laboratory. The required database will help the AFRL Library Council meet the above mission by providing the library users with research materials to meet the requirements of the Air Force Research Laboratory's research and development goals.