The subscription period of performance will run from 1 JAN 2024 to 31 DEC 2024. 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.