Members of Tinker Fire and Emergency Services load hose onto their fire engine after completing a training event at a disused hotel building on Tinker Air Force Base, Oklahoma, Oct. 6, 2021. Tinker Fire and Emergency Services recently received the International Organization for Standardization's Class 1 Certification, which is given to fire departments that meet the highest standards on water supply, communications, training, operations and prevention. (U.S. Air Force photo by Paul Shirk)