For many years the evaluating councils of the American Medical Association have provided leadership in the evaluation of products used by physicians and to some extent by the public. The Council on Pharmacy and Chemistry since 1905 has evaluated drugs and reported to the medical profession on these and related therapeutic procedures. The Council on Physical Medicine and Rehabilitation, formerly the Council on Physical Therapy, has been developing information on therapeutic and diagnostic devices since 1925. The Council on Foods and Nutrition since 1929 has evaluated nutritional claims and food products. The newer Committee on Cosmetics has been in existence since 1948. The A. M. A.'s product evaluating councils have awarded seals to manufacturers and distributors of drugs, foods, devices, and cosmetics that have complied with the rules for such acceptance. Over the years the councils have become well known for this phase of their activities, in fact, probably better