a. The Meritorious Service Unit Plaque was established by War Department Circular No. 345, dated 23 August 1944. The circular provided that military personnel assigned or attached to an organization were entitled to wear the Meritorious Service Unit Insignia on the outside half of the right sleeve of the service coat and shirt, four inches above the end of the sleeve. Additional awards were to be indicated by a gold star to be placed on the plaque. War Department Circular No. 54, 1946, provided that additional awards would be indicated by placing a golden numeral inside the wreath.
b. DF, D/PA, Subject: Proposed AR 260-15, Unit Awards, dated 12 December 1946, stated In order to enhance the prestige of an award to a meritorious service unit, the present Meritorious Service Unit Plaque has been eliminated, and in lieu thereof a Meritorious Service Unit Commendation has been established on a plane comparable to the Navy Unit Commendation and may be awarded to any type of unit for meritorious service during military operations which, if performed by an individual would warrant the award of a Legion of Merit.
c. In April 1947, D/PA approved a new design of the Meritorious Service Unit emblem that replaced the sleeve insignia to be effective 1 January 1949. On 11 April 1949, TAG advised D/PA that the stock position was such that it would not be exhausted prior to 1959. By Comment 2, 1 March 1960, DCSPER stated that for planning purposes the new Meritorious Service Unit emblem would be authorized for wear on or after 1 January 1961, with wear of the old one prohibited for wear after 30 June 1962. However, the stock level was still so high that it was not introduced into the supply system until 14 July 1966.
d. AR 260-15, dated 16 May 1947, announced the Meritorious Unit Commendation, provided for wearing of the Meritorious Unit Commendation emblem, and provided for the display of the Meritorious Unit Commendation streamer, which was scarlet with the name of the applicable theater of operations in white letters.
e. The emblem is worn by all members of a cited organization and is considered an individual decoration for persons in connection with the cited acts and may be worn whether or not they continue as members of the organization. Other personnel may wear this decoration while serving with an organization to indicate the unit has been awarded the Meritorious Unit Commendation.
f. Order of precedence and wear policy for unit awards is contained in AR 670-1. Policy for awards, approving authority, and supply of the unit award emblem is contained in AR 600-8-22. The policy for display of unit awards on guidons and flags and supply of streamers is contained in AR 840-10.