Subject to the authority, direction, and control of the Administrator, the Principal Deputy Administrator shall perform such duties and exercise such powers as the Administrator may prescribe, including the coordination of activities among the elements of the Administration. The Principal Deputy Administrator shall act for, and exercise the powers of, the Administrator when the Administrator is disabled or the position of Administrator is vacant.
50 U.S. Code § 2403. Principal Deputy Administrator for Nuclear Security
A prior section 2403, Pub. L. 106–65, div. C, title XXXII, § 3213, Oct. 5, 1999, 113 Stat. 958; Pub. L. 106–398, § 1 [div. C, title XXXI, § 3157], Oct. 30, 2000, 114 Stat. 1654, 1654A–468, which related to status of Administration and contractor personnel within Department of Energy, was renumbered section 3220 of Pub. L. 106–65, by Pub. L. 107–107, div. C, title XXXI, § 3141(a)(1), Dec. 28, 2001, 115 Stat. 1369, and transferred to section 2410 of this title.