31 U.S.C. § 315
Continuing in office
When the term of office of an officer of the Department of the Treasury ends, the officer may continue to serve until a successor is appointed and qualified.
( Pub. L. 97–258 , Sept. 13, 1982 , 96 Stat. 880 , § 309; renumbered § 310, Pub. L. 101–73, title III, § 307(a)(1) , Aug. 9, 1989 , 103 Stat. 352 ; renumbered § 311, Pub. L. 107–56, title III, § 361(a)(1) , Oct. 26, 2001 , 115 Stat. 329 ; renumbered § 312, Pub. L. 108–177, title I, § 105(a)(1)(A) , Dec. 13, 2003 , 117 Stat. 2603 ; renumbered § 315, Pub. L. 111–203, title V, § 502(a)(1) , July 21, 2010 , 124 Stat. 1580 .)