Tech. Sgt. Tom Hoopes, 90th Missile Operations Squadron; Tech. Sgt. Gregorio Escamilla, 90th MOS; and 1st. Lt. Henry Fair, 321st Missile Squadron, discuss the annual U.S. Strategic Command-directed code change. The code change process is a joint effort between the maintenance and operations groups. This week Warren completes the final code change for the year in the 90th Space Wing (Photo by Capt. Naomi Weaver).