A fire vehicle belonging to Tinker Fire and Emergency Services bears a new International Organization for Standardization Class 1 emblem, Tinker Air Force Base, Oklahoma, Oct. 6, 2021. Given to fire departments that meet the highest standards on water supply, communications, training, operations and prevention; Tinker's recent certification is the first in the Air Force. Only five other fire departments in the state of Oklahoma possess the same certification. (U.S. Air Force photo by Paul Shirk)