Division Circumstances in which requiredF1

Where environmental fate and behaviour data required in Section 7 report that an active substance is likely to partition to and persist in aquatic sediments, expert judgement shall be used to decide whether an acute or a chronic sediment toxicity test in required. Such expert judgement shall take into account whether effects on sediment dwelling invertebrates are likely by comparing the aquatic invertebrate toxicity EC₅₀ data from points 8.2.4 and 8.2.5 with the predicted levels of the active substances in sediment from data in Section 9 of the Annex to Regulation (EU) No 545/2011.