The "Star Spangled Banner" has been designated as the national anthem of the United States of America. During the playing of the anthem when the flag is displayed, persons not in uniform should stand at attention facing the flag with their right hand over their heart. Those in uniform should begin saluting the flag at the first note of the music, and hold the salute until the last note of the anthem is played.  This applies to those wearing veterans' organizations caps or the uniforms of other patriotic organizations.