Sorry man but yes there is.
(a) Designation.— The composition consisting of the words and music known as the Star-Spangled Banner is the national anthem.
(b) Conduct During Playing.— During a rendition of the national anthem—
(1) when the flag is displayed—
(A) all present except those in uniform should stand at attention facing the flag with the right hand over the heart;
(B) men 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
Posted from the cornell law website. Heres the link:
PS: Fuck Barack Osama.