117As is also observed in points 44 to 50 of the Opinion of Advocate General Kokott in Global Silicones Council and Others v ECHA (C‑559/21 P, EU:C:2023:321), it is apparent from a combined reading of that preamble and that recital 6 that the weight-of-evidence determination must first of all clarify, by taking into account all the available information set out in Section 3.2 of Annex XIII, whether the available studies have determined the BCF relevantly and reliably. If that is the case, the relevant and reliable BCF data take priority in the scheme of Annex XIII inasmuch as bioaccumulation is directly related to that data. That interpretation cannot be called into question by the inclusion by Regulation 2017/735, amending Regulation No 440/2008, of the dietary exposure test method – that is, the biomagnification or trophic amplification test method – which is adapted to substances with very low water solubility, as a method used for determining bioaccumulation in fish, as in exposure via the aquatic environment.
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