46 U.S.C. § 51907
Provision of decorations, medals, and replacements
The Secretary of Transportation may provide—
(1)
the decorations and medals authorized by this chapter and replacements for those decorations and medals; and
(2)
replacements for decorations and medals issued under a prior law.
( Pub. L. 109–304, § 8(b) , Oct. 6, 2006 , 120 Stat. 1585 ; Pub. L. 109–163, div. C, title XXXV, § 3510 , Jan. 6, 2006 , 119 Stat. 3557 ; Pub. L. 110–181, div. C, title XXXV, § 3523(a)(5)(A) , (b), Jan. 28, 2008 , 122 Stat. 599 , 600.)