10 U.S.C. § 664 - U.S. Code - Unannotated Title 10. Armed Forces § 664. Length of joint duty assignments

(a) General rule.--The length of a joint duty assignment shall be not less than two years.

(b) Waiver authority.--The Secretary of Defense may waive subsection (a) in the case of any officer.

(c) Exclusions from tour length.--The Secretary of Defense may exclude the following service from the requirement in subsection (a):

(d) Full tour of duty.--An officer shall be considered to have completed a full tour of duty in a joint duty assignment upon completion of any of the following:

(e) Accrued joint experience.--For the purposes of subsection (d)(2), the Secretary of Defense may prescribe, by regulation, certain joint experience, such as temporary duty in joint assignments, joint individual training, and participation in joint exercises, that may be aggregated to equal a full tour of duty. The Secretary shall prescribe the regulations with the advice of the Chairman of the Joint Chiefs of Staff.

(f) Constructive credit.--The Secretary of Defense may award constructive credit in the case of an officer (other than a general or flag officer) who, for reasons of military necessity, is reassigned from a joint duty assignment within 60 days of meeting the tour length criteria prescribed in subsection (d)(1). The amount of constructive service that may be credited to such officer shall be the amount sufficient for the completion of the applicable tour of duty requirement, but in no case more than 60 days.