60 STAT.] 79TH CONG. , 2D SESS.-CH. 724-AUG. 1 , 1948 necessary or proper to assist it in exercising any authority pro- vided in this Act, or in the administration or enforcement of this Act, or any regulations or orders issued thereunder. For such purposes the Commission is authorized to administer oaths and affirmations, and by subpena to require any person to appear and testify, or to appear and produce documents, or both, at any designated place. No person shall be excused from complying with any requirements under this paragraph because of his priv- ilege against self-incrimination, but the immunity provisions of the Compulsory Testimony Act of February 11, 1893 (U. S. C., title 49, sec. 46), shall apply with respect to any individual who specifically claims such privilege. Witnesses subpenaed under this subsection shall be paid the same fees and mileage as are paid witnesses in the district courts of the United States; (4) appoint and fix the compensation of such officers and employees as may be necessary to carry out the functions of the Commission. Such officers and employees shall be appointed in accordance with the civil-service laws and their compensation fixed in accordance with the Classification Act of 1923, as amended, except that to the extent the Commission deems such action nec- essary to the discharge of its responsibilities, personnel may be employed and their compensation fixed without regard to such laws. The Commission shall make adequate provision for admin- istrative review of any determination to dismiss any employee; (5) acquire such materials, property, equipment, and facilities, establish or construct such buildings and facilities, and modify such buildings and facilities from time to time as it may deem necessary, and construct, acquire, provide, or arrange for such facilities and services (at project sites where such facilities and services are not available) for the housing, health, safety, welfare, and recreation of personnel employed by the Commission as it may deem necessary; (6) with the consent of the agency concerned, utilize or employ the services or personnel of any Government agency or any State or local government, or voluntary or uncompensated personnel, to perform such functions on its behalf as may appear desirable; (7) acquire, purchase, lease, and hold real and personal prop- erty as agent of and on behalf of the United States and to sell, lease, grant, and dispose of such real and personal property as provided in this Act; and (8) without regard to the provisions of the Surplus Property Act of 1944 or any other law, make such disposition as it may deem desirable of (A) radioactive materials, and (B) any other property the special disposition of which is, in the opinion of the Commission, in the interest of the national security. (b) SECuRITY.- The President may, in advance, exempt any specific action of the Commission in a particular matter from the provisions of law relating to contracts whenever he determines that such action is essential in the interest of the common defense and security. (c) ADVISORY COMIrrrEES. -The members of the General Advisory Committee established pursuant to section 2 (b) and the members of advisory boards established pursuant to subsection (a) (1) of this section may serve as such without regard to the provisions of sections 109 and 113 of the Criminal Code (18 U. S . C ., sees. 198 and 203) or section 19 (e) of the Contract Settlement Act of 1944, except insofar as such sections may prohibit any such member from receiving com- pensation in respect of any particular matter which directly involves the Commission or in which the Commission is directly interested. 771 Administration of oaths, etc. 27 Stat. 443. Officers and em- ployees. 42 Stat. 1488. 5U. S. C . §§661-674; Supp. V, § 661 ct seq. Ante, pp. 216, 219. Acquisition of prop- erty, etc. Use of Government services, etc. Purchase, sale, et., of property. Disposition ofradio- active materials, etc. 58 Stat. 765 . 50 U. 8. C., Supp. V, app. §§ 1611-1646. Ante, pp . 168, 169, 599; post, p. 886. Ante, p. 757. 35 Stat. 1107, 1109. 18 U. S. C., Snpp. V, 1 198 note. 58 Stat. 668. 41 U. S. C., Supp. V, § 119.