§ 620. Active-duty lists(a) The Secretary of the military department concerned shall maintain a single list of all officers (other than officers described in section 641 of this title) who are on active duty for each armed force under his jurisdiction (other than the Coast Guard when it is operating as a service in the Navy). (b) Officers shall be carried on the active-duty list of the armed force of which they are members in the order of seniority of the grade in which they are serving on active duty. Officers serving in the same grade shall be carried in the order of their rank in that grade. (c) An officer whose position on the active-duty list results from service under a temporary appointment or in a grade held by reason of assignment to a position has, when that appointment or assignment ends, the grade and position on the active-duty list that he would have held if he had not received that appointment or assignment. (d) Under regulations prescribed by the Secretary of the military department concerned, a reserve officer who is ordered to active duty (whether voluntarily or involuntarily) during a war or national emergency and who would otherwise be placed on the active-duty list may be excluded from that list as determined by the Secretary concerned. Exclusion of an officer from the active-duty list as the result of action by the Secretary concerned under the preceding sentence shall expire not later than 24 months after the date on which the officer enters active duty under an order to active duty covered by that sentence. (Added Pub. L. 96–513, title I, § 105, Dec. 12, 1980, 94 Stat. 2855; amended Pub. L. 103–337, div. A, title XVI, § 1624, Oct. 5, 1994, 108 Stat. 2961; Pub. L. 104–106, div. A, title XV, § 1501(a)(1), Feb. 10, 1996, 110 Stat. 495.) Amendments

1996—Subsec. (d). Pub. L. 104–106 made technical amendment to Pub. L. 103–337, § 1624. See 1994 Amendment note below.

1994—Subsec. (d). Pub. L. 103–337, § 1624, as amended by Pub. L. 104–106, added subsec. (d).

 Effective Date of 1996 Amendment

Amendment by Pub. L. 104–106 effective as if included in the Reserve Officer Personnel Management Act, title XVI of Pub. L. 103–337, as enacted on Oct. 5, 1994, see section 1501(f)(3) of Pub. L. 104–106, set out as a note under section 113 of this title.

 Effective Date of 1994 Amendment

Amendment by Pub. L. 103–337 effective Oct. 1, 1996, see section 1691(b)(1) of Pub. L. 103–337, set out as a note under section 10001 of this title.

 Effective Date

Section effective Sept. 15, 1981, but the authority to prescribe regulations under this section effective on Dec. 12, 1980, see section 701 of Pub. L. 96–513, set out as an Effective Date of 1980 Amendment note under section 101 of this title.

 Transfer of Functions

For transfer of authorities, functions, personnel, and assets of the Coast Guard, including the authorities and functions of the Secretary of Transportation relating thereto, to the Department of Homeland Security, and for treatment of related references, see sections 468(b), 551(d), 552(d), and 557 of Title 6, Domestic Security, and the Department of Homeland Security Reorganization Plan of November 25, 2002, as modified, set out as a note under section 542 of Title 6.

 Transition Provisions Under Defense Officer Personnel Management Act

Regulations prescribed under this section applicable to establishment of initial active-duty lists, see section 621(a) of Pub. L. 96–513, set out as a note under section 611 of this title.