Mo. Rev. Stat. § 41.592
The adjutant general of Missouri is hereby authorized to present, in the name of the state of Missouri, a Missouri National Guard first sergeant ribbon, which shall be of suitable design, as may be determined by the governor, to individual members of the Missouri National Guard who have been assigned to a unit first sergeant position for a period of three years and have been recommended by their squadron or company commander. In order to qualify for the award the individual must have demonstrated exceptional and honorable leadership qualities and dedication as a first sergeant. This award shall be granted for those individuals who have previously served as first sergeants provided their service demonstrated exceptional and honorable leadership.
§ 41.592, RSMo