§ 688.
(b)
Covered Members.—
Except as provided in subsection (d), subsection (a) applies to the following members of the armed forces:
(1)
A retired member of the Regular Army, Regular Navy, Regular Air Force, or Regular Marine Corps.
(2)
A member of the Retired Reserve who was retired under section 1293, 7311, 7314, 8323, 9311, or 9314 of this title.
(3)
A member of the Fleet Reserve or Fleet Marine Corps Reserve.
(4)
A retired member of the Space Force.
(c)
Duties of Member Ordered to Active Duty.—
The Secretary concerned may, to the extent consistent with other provisions of law, assign a member ordered to active duty under this section to such duties as the Secretary considers necessary in the interests of national defense.
(e)
Limitation of Period of Recall Service.—
(1)
A member ordered to active duty under subsection (a) may not serve on active duty pursuant to orders under that subsection for more than 12 months within the 24 months following the first day of the active duty to which ordered under that subsection.
(2)
Paragraph (1) does not apply to the following officers:
(A)
A chaplain who is assigned to duty as a chaplain for the period of active duty to which ordered.
(B)
A health care professional (as characterized by the Secretary concerned) who is assigned to duty as a health care professional for the period of active duty to which ordered.
(C)
An officer assigned to duty with the American Battle Monuments Commission for the period of active duty to which ordered.
(D)
An officer who is assigned to duty as a defense attaché or service attaché for the period of active duty to which ordered.
(f)
Waiver for Periods of War or National Emergency.—
Subsections (d) and (e) do not apply in time of war or of national emergency declared by Congress or the President.
(Added [Pub. L. 104–201, div. A, title V, § 521(a)], Sept. 23, 1996, [110 Stat. 2515]; amended [Pub. L. 105–85, div. A, title V, § 502], Nov. 18, 1997, [111 Stat. 1724]; [Pub. L. 107–107, div. A, title V, § 509(a)], Dec. 28, 2001, [115 Stat. 1091]; [Pub. L. 115–232, div. A, title VIII, § 809(a)], Aug. 13, 2018, [132 Stat. 1840]; [Pub. L. 116–283, div. A, title IX, § 924(b)(4)(I)], Jan. 1, 2021, [134 Stat. 3822]; [Pub. L. 118–31, div. A, title XVII, § 1719A(b)(1)], Dec. 22, 2023, [137 Stat. 664].)