The above units were reorganized as elements of the 183rd Infantry (Headquarters was federally recognized on 10 January 1947 at Twin Falls) and the 116th Mechanized Cavalry Reconnaissance Squadron (Headquarters was federally recognized on 8 January 1947 at Caldwell). The 183rd Infantry (less 3rd Battalion) and 116th Mechanized Cavalry Reconnaissance Squadron were consolidated, reorganized, and redesignated on 12 September 1949 as the 116th Armored Cavalry with headquarters at Twin Falls. The 3rd Battalion, 183rd Infantry, was concurrently converted and redesignated as the 116th Engineer Combat Battalion—hereafter separate lineage. The 3rd Squadron was allotted on 15 December 1967 to the Nevada Army National Guard; it was relieved on 11 May 1974 from allotment to the Nevada Army National Guard and allotted to the Oregon Army National Guard. The 1st Squadron was relieved on 1 May 1977 from allotment to the Idaho Army National Guard. The Attack Helicopter Company was allotted on 1 September 1975 to the Washington and Wyoming Army National Guard. The 116th was one of the four Army National Guard armored cavalry regiments during the 1980s, along with the 107th Armored Cavalry Regiment, 163rd Armored Cavalry Regiment and the 278th Armored Cavalry Regiment.