 He served on the House Committee on Banking, Finance, and Urban Affairs, the House Committee on Government Operationsl, and the House Committee on Foreign Affairs.In 1985 Weiss headed a committee that found 90 percent of the twenty to thirty thousand new drugs used on farm animals had not been approved by the FDA in violation of the Federal Food, Drug, and Cosmetic Act.They also found that the U.S. Food and Drug Administration (FDA) failed to remove several drugs already known to be Carcinogens.