; (2) the Director of the Congressional Budget Office shall provide technical assistance to the Commission on findings and recommendations of the Congressional Budget Office; and (3) the chair of the Joint Committee on Taxation shall provide technical assistance to the Commission on findings and recommendations of the Joint Committee on Taxation. (j) Personnel matters (1) In general Members of the Commission shall serve without compensation. (2) Travel expenses 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 the homes or regular places of business of the members in the performance of services for the Commission. (3) Staff (A) In general (i) Appointment The co-chairpersons of the Commission may, without regard to civil service laws and regulations, appoint and terminate an executive director and such other additional personnel as may be necessary to enable the Commission to perform the duties of the Commission. (ii) Approval The appointment of an executive director under clause (i) shall be subject to confirmation by the Commission. (B) Compensation (i) In general The co-chairpersons of the Commission may fix the compensation of the executive director and other personnel of the Commission without regard to the provisions of chapter 51 and subchapter III of chapter 53 of title 5, United States Code, relating to the classification of positions and General Schedule pay rates. (ii) Pay rate The rate of pay for the executive director and other personnel of the Commission may not exceed the rate payable for level V of the Executive Schedule under section 5613 of title 5, United States Code. (4) Detail of government employees Any employee of the Federal Government may be detailed to the Commission— (A) without reimbursement