5 U.S.C. § 3347
(a) Sections 3345 and 3346 are the exclusive means for temporarily authorizing an acting official to perform the functions and duties of any office of an Executive agency (including the Executive Office of the President, and other than the Government Accountability Office) for which appointment is required to be made by the President, by and with the advice and consent of the Senate, unless—
(1) a statutory provision expressly—
(Added Pub. L. 105–277, div. C, title I, § 151(b), , 112 Stat. 2681–613; amended Pub. L. 106–31, title V, § 5011, , 113 Stat. 112; Pub. L. 108–271, § 8(b), , 118 Stat. 814.)
A prior section 3347, Pub. L. 89–554, , 80 Stat. 426, provided for Presidential authority relating to details, prior to repeal by Pub. L. 105–277, div. C, title I, § 151(b), (d)(1), , 112 Stat. 2681–611, 2681–616, effective 30 days after . See section 3345 of this title.
2004—Pub. L. 108–271 substituted “Government Accountability Office” for “General Accounting Office” in introductory provisions of subsec. (a) and in subsec. (b).
1999—Subsec. (b). Pub. L. 106–31 substituted “subsection (a)(1)” for “subsection (a)(2)”.
Section effective 30 days after , and applicable to any office that becomes vacant after such effective date, with certain exceptions, see section 151(d) of Pub. L. 105–277, set out as a note under section 3345 of this title.