Brassards used by the U.S. Army were 18 inches long and four inches high. There were certain situations involving training during which acting ranks were conferred on soldiers. During that time period the soldier would wear a brassard (commonly called an armband) to indicate the acting rank. These were used by the Army Specialized Training Program, by the Replacement Training Centers and at other schools or training centers that designated acting ranks but would not have been used by established units in the field. The ASTP had acting rank up to colonel. The ASTP rank insignia appearing on brassards were:
