of title 5, United States Code, governing appointments in the competitive service, and without regard to the provisions of chapter 51 and subchapter III of chapter 53 of such title relating to classification and General Schedule pay rates, except that the compensation of any employee of the Commission may not exceed a rate equal to the annual rate of basic pay payable for GS–18 of the General Schedule under section 5332 of title 5, United States Code. (c) Experts and consultants The Commission may procure the services of experts and consultants in accordance with the provisions of section 3109(b) of title 5, United States Code, but at rates for individuals not to exceed the daily equivalent of the highest rate payable under section 5332 of such title. (d) Administrative support services The Commission may enter into agreements with the Administrator of General Services for procurement of financial and administrative services necessary for the discharge of the duties of the Commission. Payment for such services shall be made by reimbursement from funds of the Commission in such amounts as may be agreed upon by the Chairman of the Commission and the Administrator. (e) Contracts The Commission may— (1) procure supplies, services, and property by contract in accordance with applicable laws and regulations and to the extent or in such amounts as are provided in appropriations Acts