22 CFR 1.3: Office of the Under Secretaries of State.

The official flag indicative of the office of the Under Secretaries of State shall be as follows: On a red rectangular field a white disk bearing the official coat of arms of the United States adopted by act of June 20, 1782, in proper colors. In each of the four corners a white five-pointed star with one point upward. The colors and automobile flag to be the same design, adding a white fringe. For the colors a cord and tassel of white and red to be added. The sizes to be in accordance with military and naval customs.