Section 582, Pub. L. 85–864, title X, § 1002, Sept. 2, 1958, 72 Stat. 1602, authorized Commissioner to appoint advisory committees to advise and consult with respect to administration of National Defense Act, prescribed a membership of twelve, four each from fields of science (engineering, mathematics, or science), humanities, and other appropriate fields, and provided for compensation ($50 per day limitation) and travel expenses of committee members. Section 583, Pub. L. 85–864, title X, § 1003, Sept. 2, 1958, 72 Stat. 1603, exempted members of advisory committees or information councils from conflict-of-interest laws, with certain exceptions.