uniform were required to salute. On July 7, 1976, the law was simplified. Men and women were instructed to stand with their hands over their hearts, men removing their hats, irrespective of whether or not the flag was displayed and those in uniform saluting. On August 12, 1998, the law was rewritten keeping the same instructions, but differentiating between "those in uniform" and "members of the Armed Forces and veterans" who were both instructed to salute during the playing whether or not the flag was displayed. Because of the changes in law over the years and confusion between instructions for the Pledge of Allegiance versus the National Anthem, throughout most of the 20th century many people simply stood at attention or with their hands folded in front of them during the playing of the Anthem, and when reciting the Pledge they would hold their hand (or hat) over their heart. After 9/11, the custom of placing the hand over the heart during the playing of the national anthem became nearly universal. Since 1998, federal law (viz., the United States Code ) states that during a rendition of the national anthem, when the flag is displayed, all present including those in uniform should stand at attention; non-military service individuals should face the flag with the right hand over the heart; members of the Armed Forces and veterans who are present and not in uniform may render the military salute; military service persons not in uniform should remove their headdress with their right hand and hold the headdress at the left shoulder, the hand being over the heart; and members of the Armed Forces and veterans who are in uniform should give the military salute at the first note of the anthem and maintain that position until the last note. The law further provides that when the flag is not displayed, all present should face toward the music and act in the same manner they would if the flag were displayed. Military law requires all vehicles on the installation to stop when the song is played and all individuals outside to stand at attention and face the direction of the music and either salute, in uniform, or place the right hand over the heart, if out of uniform. The law was amended in 2008, and since allows military veterans to salute out of uniform, as well. The text of is suggestive and