; (B) ensure that the chair of the Athletes' Advisory Council, or the designee of the chair, holds voting power on the board of directors of the corporation and in the committees and entities of the corporation; (C) require that— (i) not less than 1/3 of the membership of the board of directors of the corporation shall be composed of, and elected by, such amateur athletes; and (ii) not less than 20 percent of the membership of the board of directors of the corporation shall be composed of amateur athletes who— (I) are actively engaged in representing the United States in international amateur athletic competition; or (II) have represented the United States in international amateur athletic competition during the preceding 10-year period; and (D) ensure that the membership and voting power held by such amateur athletes is not less than 1/3 percent of the membership and voting power held in the board of directors of the corporation and in the committees and entities of the corporation, including any panel empowered to resolve grievances; ; and (3) by adding at the end the following: (c) Conflict of interest An athlete who represents athletes under subsection (b)(2) shall not be employed by the Center, or serve in a capacity that exercises decision-making authority on behalf of the Center, during the 2-year period beginning on the date on which the athlete ceases such representation. (d) Certification requirements The bylaws of the corporation shall include a description of all generally applicable certification requirements for membership in the corporation. . (c) Duties (1) In general Section 220505 of title 36, United States Code, is amended— (A) in the section heading, by striking Powers and inserting Powers and duties