; (2) in paragraph (4), by striking the period at the end and inserting ; and ; and (3) by adding after paragraph (4) the following new paragraph (5): (5) the alignment of opportunities for promotion for officers considered by any particular selection board with opportunities for promotion in the next year as estimated pursuant to paragraph (4) and reported in the annual defense manpower requirements report covering such year under section 115a of this title. . (b) Prohibition on determination of officers in promotion zone based on year of original appointment to current grade (1) In general Such section is further amended by adding at the end the following new subsection: (c) The Secretary concerned may not determine the number of officers in a promotion zone on the basis of the year in which officers receive their original appointment in their current grade. . (2) Effective date The amendment made by paragraph (1) shall take effect on the date of the enactment of this Act, and shall apply with respect to promotion zones established for promotion selection boards convened on or after that date. 510. Alternative promotion authority for officers in designated competitive categories of officers (a) Alternative promotion authority (1) In general Chapter 36 of title 10, United States Code, is amended by adding at the end the following new subchapter: VI Alternative Promotion Authority for Officers in Designated Competitive Categories Sec. 649a. Officers in designated competitive categories. 649b. Selection for promotion. 649c. Eligibility for consideration for promotion. 649d. Opportunities for consideration for promotion. 649e. Promotions. 649f. Failure of selection for promotion. 649g. Retirement: retirement for years of service