Public Law 110-181, Section 594: SEC. 594. CONDUCT BY MEMBERS OF THE ARMED FORCES AND VETERANS OUT OF UNIFORM DURING HOISTING, LOWERING, OR PASSING OF UNITED STATES FLAG. Section 9 of title 4, United States Code, is amended by striking ``all persons present'' and all that follows through the end of the section and inserting the following: ``all persons present in uniform should render the military salute. Members of the Armed Forces [[Page 122 STAT. 139]] and veterans who are present but not in uniform may render the military salute. All other persons present should face the flag and stand...