10 U.S.C. § 8297
Additional awards
Not more than one Navy cross, distinguished-service medal, silver star medal, distinguished flying cross, or Navy and Marine Corps Medal may be awarded to a person. However, for each succeeding act or service that would otherwise justify the award of such a medal or cross, the President may award a suitable bar, emblem, or insignia to be worn with the decoration and corresponding rosette or other device.
( Aug. 10, 1956, ch. 1041 , 70A Stat. 390 , § 6247; Pub. L. 113–66, div. A, title V, § 561(b) , Dec. 26, 2013 , 127 Stat. 766 ; renumbered § 8297, Pub. L. 115–232, div. A, title VIII, § 807(b)(13) , Aug. 13, 2018 , 132 Stat. 1836 .)