Advisory Committee on Antarctic Names | International Olympic Committee | Committee of Public Safety | United States National Research Council | UK Antarctic Place-Names Committee | National Research Council | Republican National Committee | Central Committee | Democratic National Committee | Permanent Court of Arbitration | Commonwealth Scientific and Industrial Research Organisation | House Un-American Activities Committee | research | International Committee of the Red Cross | Agricultural Research Service | Office of Naval Research | St. Jude Children's Research Hospital | United States Senate Committee on the Judiciary | United States House Committee on Ways and Means | Cancer Research UK | United States Olympic Committee | Medical Research Council (UK) | American Jewish Committee | United States House Committee on the Judiciary | United States Senate Committee on Appropriations | Medical Research Council | Judicial Committee of the Privy Council | International Paralympic Committee | Central Committee of the Communist Party of the Soviet Union | United States House Committee on Appropriations |
In 1991, he was appointed as a member of the Saudi Council of Senior Scholars and the Permanent Committee for Islamic Research and Issuing Fatwas.