; and (2) by inserting after subsection (c) the following new subsection (d): (d) The number of officers recommended for promotion by a selection board convened under section 611(a) of this title may not exceed the number equal to 95 percent of the number of officers included in the promotion zone established under section 623 of this title for consideration by the board. . (b) Effective date The amendments made by this section shall take effect on the date of the enactment of this Act, and shall apply with respect to consideration by promotion selection boards convened under section 611(a) of title 10, United States Code, of promotion zones that are established under section 623 of that title on or after that date. 505. Expansion of authority for continuation on active duty of officers in certain military specialties and career tracks Section 637a(a) of title 10, United States Code, is amended by inserting separation or after provided for the . 506. Higher grade in retirement for officers following reopening of determination or certification of retired grade (a) Advice and consent of Senate required for higher grade Section 1370(f) of title 10, United States Code, is amended— (1) by redesignating paragraph (5) as paragraph (6); and (2) by inserting after paragraph (4) the following new paragraph (5): (5) If the retired grade of an officer is proposed to be increased through the reopening of the determination or certification of officer's retired grade, the increase in the retired grade shall be made by the Secretary of Defense, by and with the advice and consent of the Senate. . (b) Recalculation of retired pay Paragraph (6) of such section, as redesignated by subsection (a)(1), is amended— (1) by inserting or increased after reduced ; (2) by inserting as a result of the reduction or increase after any modification of the retired pay of the officer ; (3) by inserting or increase after the reduction