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When establishing maximum limits, in addition to issues relating to preventive consumer protection and toxicological data on risk assessment, sampling procedures and methods of analysis, as well as economic and political aspects have to be considered. Therefore, various and diverse organizations tend to be involved in the process of establishing maximum limits. Specifically, the following are responsible for the toxicological evaluation of the substances in question: International Programme on Chemical Safety (IPCS), International Agency of Research on Cancer (IARC), Joint FAO/WHO Expert Committee on Food Additives (JECFA), and, within the Commission of the European Communities, the Scientific Committee for Food (SCF). The interests of world-wide trade are looked after by the Codex Alimentarius Commission, the Codex Committee of Food Additives and Contaminants, and the World Trade Organisation, WTO. On the basis of Commission Regulation (EC) no. 315/93, in 2001 the EU has adopted Commission Regulation (EC) no. 466/2001 on contaminants establishing maximum limits for nitrates, heavy metals, 3-monochlor-propan-1,2-diol, and aflatoxins in foods (peanuts, nuts, dried fruits, cereal/cereal products). In February 2002, this Regulation has been completed by Regulation (EC) no. 257/2002 (aflatoxins in cereals), and in March 2002 by Regulation (EC) no. 472/2002 (aflatoxins in spices and ochratoxin A in cereals and dried grapes). Reference is made to other mycotoxins the levels of which in certain foods should be the subject of future regulations.