§ 531.
(a)
(1)
Original appointments in the grades of second lieutenant, first lieutenant, and captain in the Regular Army, Regular Air Force, and Regular Marine Corps in the grades of ensign, lieutenant (junior grade), and lieutenant in the Regular Navy, and in the equivalent grades in the Space Force shall be made by the President alone.
(2)
Original appointments in the grades of major, lieutenant colonel, and colonel in the Regular Army, Regular Air Force, and Regular Marine Corps in the grades of lieutenant commander, commander, and captain in the Regular Navy, and in the equivalent grades in the Space Force shall be made by the President, by and with the advice and consent of the Senate.
(c)
Subject to the authority, direction, and control of the President, an original appointment as a commissioned officer in the Regular Army, Regular Air Force, Regular Navy, Regular Marine Corps, or Space Force may be made by the Secretary of Defense in the case of a reserve commissioned officer upon the transfer of such officer from the reserve active-status list of a reserve component of the armed forces to the active-duty list of an armed force, notwithstanding the requirements of subsection (a).
(Added [Pub. L. 96–513, title I, § 104(a)], Dec. 12, 1980, [94 Stat. 2845]; amended [Pub. L. 97–22, § 3(a)], July 10, 1981, [95 Stat. 124]; [Pub. L. 108–375, div. A, title V, § 501(a)(4)], (c)(5), Oct. 28, 2004, [118 Stat. 1873], 1874; [Pub. L. 116–92, div. A, title V, § 501(a)], Dec. 20, 2019, [133 Stat. 1343]; [Pub. L. 116–283, div. A, title IX, § 924(b)(4)(A)], (13), Jan. 1, 2021, [134 Stat. 3822], 3823; [Pub. L. 118–31, div. A, title XVII, § 1716(b)(2)], Dec. 22, 2023, [137 Stat. 633].)