8.8.2006 Official Journal of the European Union L 217/1 | (Acts whose publication is obligatory) COUNCIL REGULATION (EC) No 1195/2006 of 18 July 2006 amending Annex IV to Regulation (EC) No 850/2004 of the European Parliament and of the Council on persistent organic pollutants (Text with EEA relevance) THE COUNCIL OF THE EUROPEAN UNION, (4) Having regard to the Treaty establishing the European Community, Having regard to Regulation (EC) No 850/2004 ('), and in particular Article 7(4)(a) and Article 14(3) thereof, Whereas: (1) The Commission conducted a study on the implemen- tation of waste-related provisions of Regulation (EC) (6) No 850/2004. (2)  The proposed concentration limits in Annex IV to Regu- 7) lation (EC) No 850/2004 are considered the most appro- priate to ensure a high level of protection of human health and the environment in view of the destruction or irreversible transformation of the persistent organic pollutants. The concentration limit for PCDF/PCDD is expressed in toxic equivalent concentration (TEQ’), using the 1998 World Health Organisation toxic equivalency factors (TEFs’). Available data on dioxin-like PCBs are not sufficient to include these compounds in the TEQ. Hexachlorocyclohexane (HCH) is the name of a technical mixture of various isomers. The effort to completely analyse them would be disproportionate. Only alpha-, beta- and gamma-HCH is of toxicological relevance. Therefore, the concentration limit exclusively refers to them. Most commercially available analytical standard mixtures for the analysis of this compound class only identify these isomers. Regulation (EC) No 850/2004 should therefore be amended accordingly. The Committee provided for in Article 17(1) of Regu- lation (EC) No 850/2004 has not delivered an opinion on the measures laid down in this Regulation, following its consultation, on 25 January 2006, in accordance with the procedure laid down in Article 17(2) of that Regu- lation, (3) For toxaphene, a mixture of over 670 substances, no HAS ADOPTED THIS REGULATION: agreed and relevant analytical methodology to determine the total concentration is available. However, the above mentioned study did not identify any stocks consisting of, containing or contaminated with Article 1 toxaphene in the European Union. In addition, the study demonstrated that, whenever any persistent The Annex IV to Regulation (EC) No 850/2004 shall be organic pollutant pesticides were detected in wastes, replaced by the text set out in the Annex to this Regulation. their concentrations were usually high when compared with the proposed concentration limits. For the time being, the available analytical methodologies for the determination of toxaphene may be considered Article 2 adequate for the purposes of this Regulation. This Regulation shall enter into force on the twentieth day () O] L 158, 30.4.2004, p. 7. Corrected version in O] L 229, following that of its publication in the Official Journal of the 29.6.2004, p. 5. European Union.