On 1 July 1955, the 190th was authorized to expand to a group level, and the 124th Fighter Group (Air Defense) was established by the National Guard Bureau. The 190th FIS becoming the group's flying squadron. Other squadrons assigned into the group were the 124th Headquarters, 124th Material Squadron (Maintenance), 124th Combat Support Squadron, and the 124th USAF Dispensary. Also in 1955, the F-86A day interceptors were replaced by the F-94A Starfire all-weather interceptor. The 190th changed aircraft four more times over the next 23 years to fly the F-89C Scorpion, F-86L Sabre Interceptor and the F-102 Delta Dagger.