; and (iii) To serve as a vehicle for discussion and communication on matters of concern to exchanges, firms, end-users, and regulators regarding the derivatives markets and their regulation by the Commission. (C) Reimbursement The members of each advisory committee shall be entitled to per diem and travel expense reimbursement by the Commission. (D) Applicability of the Federal Advisory Committee Act An advisory committee shall be subject to the Federal Advisory Committee Act (5 U.S.C. App.). . 3. Transition rules Notwithstanding section 2(a)(15) of the Commodity Exchange Act, the Commodity Futures Trading Commission may permit an advisory committee that, as of the date of the enactment of this Act, had a charter established by the Commission, or that was established under such section as in effect before such date of enactment, to continue to operate in accordance with the charter or in accordance with such predecessor section, as the case may be, until the charter is renewed or the sponsor of the advisory committee is changed, whichever occurs earlier.