PUBLIC LAW 106-65—OCT. 5, 1999 113 STAT. 591 be counted against any limitation on the number of general and flag officers who may be on active duty.". (b) RETENTION BOARDS FOR RESERVE OFFICERS. —Subsection (a) of section 14906 of such title is amended to read as follows: "(a) COMPOSITION OF BOARDS. — Each board convened under this chapter shall consist of officers appointed as follows: "(1) Each member of the board shall be an officer of the same armed force as the officer being required to show cause for retention in an active status. "(2) Each member of the board shall hold a grade above major or lieutenant commander, except that at least one member of the board shall hold a grade above lieutenant colonel or commander. "(3) Each member of the board shall be senior in grade to any officer to be considered by the board.". SEC. 505. MINIMUM SELECTION OF WARRANT OFFICERS FOR PRO- MOTION FROM BELOW THE PROMOTION ZONE. Section 575(b)(2) of title 10, United States Code, is amended by adding at the end the following new sentence: "If the number determined under this subsection with respect to a promotion zone within a grade (or grade and competitive category) is less than one, the board may recommend one such officer for promotion from below the zone within that grade (or grade and competitive category).". SEC. 506. INCREASE IN THRESHOLD PERIOD OF ACTIVE DUTY FOR APPLICABILITY OF RESTRICTION ON HOLDING OF CIVIL OFFICE BY RETIRED REGULAR OFFICERS AND RESERVE OFFICERS. Section 973(b)(1) of title 10, United States Code, is amended— (1) in subparagraph (B), by striking "180 days" and inserting "270 days"; and (2) in subparagraph (C), by striking "180 days" and inserting "270 days". SEC. 507. EXEMPTION OF RETIREE COUNCIL MEMBERS FROM RECALLED RETIREE LIMITS. Section 690(b)(2) of title 10, United States Code, is amended by adding at the end the following new subparagraph: "(D) Any member of the Retiree Council of the Army, Navy, or Air Force for the period on active duty to attend the annual meeting of the Retiree Council.". SEC. 508. TECHNICAL AMENDMENTS RELATING TO JOINT DUTY ASSIGNMENTS. (a) JOINT DUTY ASSIGNMENTS FOR GENERAL AND FLAG OFFI- CERS.—Subsection (g) of section 619a of title 10, United States Code, is amended to read as follows: " (g) LIMITATION FOR GENERAL AND FLAG OFFICERS PREVIOUSLY RECEIVING JOINT DUTY ASSIGNMENT WAIVER.— A general officer or flag officer who before January 1, 1999, received a waiver of subsection (a) under the authority of this subsection (as in effect before that date) may not be appointed to the grade of lieutenant general or vice admiral until the officer completes a full tour of duty in a joint duty assignment.". (b) NUCLEAR PROPULSION OFFICERS. —Subsection (h) of that section is gmfiended—
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