; vacancies (1) In general Members of the Commission shall each be appointed for a term of 5 years, except that of the members first appointed, 3 members shall be appointed for terms of 3 years. (2) Vacancies (A) In general Any vacancy on the Commission shall not affect its powers, but shall be filled in the same manner as the original appointment was made and shall be subject to the same conditions as the original appointment. (B) Unexpired term An individual chosen to fill a vacancy shall be appointed for the unexpired term of the member replaced. (d) Initial meeting Not later than 30 days after the date on which all members of the Commission have been appointed, the Commission shall hold its first meeting. (e) Meetings The Commission shall meet at the call of the Chairperson. (f) Quorum A majority of the members of the Commission shall constitute a quorum, but a lesser number of members may hold hearings. (g) Chairperson and vice chairperson The Commission shall select a Chairperson and Vice Chairperson from among its members. (h) Funding Members of the Commission shall be allowed travel expenses, including per diem in lieu of subsistence at rates authorized for employees of agencies under subchapter I of chapter 57 of title 5, United States Code, while away from their homes or regular places of business in the performance of services for the Commission. 303. Duties of the Commission (a) Advising Congress on the operation of the WTO dispute settlement system (1) In general The Commission shall review— (A) all adverse reports of dispute settlement panels and the Appellate Body which are— (i) adopted by the Dispute Settlement Body; and (ii) the result of a proceeding initiated against the United States by a WTO member; and (B) upon the request of the Committee on Ways and Means of the House of Representatives or the Committee on Finance of the Senate— (i) any adverse report of a dispute settlement panel or the Appellate Body— (I) which is adopted by the Dispute Settlement Body