 The lineage of Company A, 184th Infantry Regiment was used to form HHC, 1st Battle Group, 184th Infantry, while the lineage of Company B, 184th Infantry Regiment was used to form HHC, 2d Battle Group, 184th Infantry.The term "regiment" was no longer used because regiments were no longer in the force structure, having been replaced by battle groups, and regimental numbers were only used for purposes of lineage and honors.On 1 March 1963, the 184th Infantry was reorganized to consist of the 1st and 2d Battalions, elements of the 49th Infantry Division of the California National Guard.