Lt. Col. Thomas Clark, 437th Operations Group deputy chief of standards and evaluations, uses the new Electronic Flight Bag mount modification on Joint Base Charleston, S.C., Sept. 29, 2017. The EFB enables aircrew to digitally view aviation charts and publications which were previously published on paper. EFBs augmented the paper publications until Air Mobility Command eliminated the requirement to carry paper publications, and allowed the sole use of EFBs for in-flight reference. (U.S. Air Force photo by Senior Airman Thomas T. Charlton)