14 U.S.C. § 332 : US Code - Section 332: Recall to active duty with consent of officer

Search 14 U.S.C. § 332 : US Code - Section 332: Recall to active duty with consent of officer

(a) Any regular officer on the retired list may, with that
officer's consent, be assigned to such duties as that officer may
be able to perform.
(b) The number of retired officers on active duty in the grade of
lieutenant commander, commander, or captain shall not exceed 2
percent of the authorized number of officers on active duty in each
such grade. However, this limitation does not apply to retired
officers of these grades recalled to serve as members of courts,
boards, panels, surveys, or special projects for periods not to
exceed one year.