are also mostly listed on the DSB web page. Membership and designation The board shall be composed of not more than 45 members and not more than 12 senior fellow members, who are eminent authorities in the fields of science, technology, manufacturing, acquisition, and other matters of special interest to the Department of Defense. The board members shall be appointed by the Secretary of Defense, and their appointments will be renewed on an annual basis. Those members, who are not full-time federal officers or employees, shall be appointed as experts and consultants under the authority of 5 U.S.C. Sec. 3109, and serve as special government employees. Members may be appointed for terms ranging from one to four years. Such appointments will normally be staggered among the board membership to ensure an orderly turnover in the board's overall composition on a periodic basis. With the exception of travel and per diem for official travel, they shall normally serve without compensation, unless otherwise authorized by the appointing authority. The Secretary of Defense, based upon the recommendation of the Under Secretary of Defense (Acquisition, Technology and Logistics), shall appoint the board's chairperson. The Under Secretary of Defense (Acquisition, Technology and Logistics) shall appoint the vice chairperson. The board chairman and vice chairman shall serve two-year terms and, with the Secretary of Defense's approval, may serve additional terms. The Secretary of Defense may invite other distinguished U.S. Government officers to serve as non-voting observers, and the Under Secretary of Defense for Acquisition, Technology and Logistics may invite chairpersons from other DoD-supported federal advisory committees to serve as non-voting observers. The Under Secretary of Defense for Acquisition, Technology, and Logistics may appoint experts and consultants, with special expertise, to assist the board on an ad hoc basis. These experts and consultants, appointed under the authority of 5 U.S.C. Sec. 3109, shall also serve as special government employees; however, they shall have no voting rights on the board. Non-voting observers and those non-voting experts and consultants appointed by the Under Secretary of Defense for Acquisition, Technology, and Logistics shall not count toward the Board's total membership. History The Defense Science Board was established in 1956 in response to recommendations of the Hoover Commission: The Assistant Secretary of Defense (Research and Development) will appoint a standing committee, reporting directly to him, of outstanding basic and applied scientists. This committee will canvass periodically the needs and opportunities presented