# Commission Regulation (EU) No 283/2013 of 1 March 2013 setting out the data requirements for active substances, in accordance with Regulation (EC) No 1107/2009 of the European Parliament and of the Council concerning the placing of plant protection products on the market (Text with EEA relevance), Division: Circumstances in which required

Extent: E+W+S+N.I.

If the metabolism studies indicate that residues of the active substance or of relevant metabolites or breakdown products either from plant or soil metabolism may occur (> 0,01 mg/kg), limited field studies and, if necessary, field trials shall be carried out.
Studies shall not be required in the following cases:
no metabolism studies on rotational crops are to be performed, or
metabolism studies on rotational crops show that no residues of concern are to be expected in rotational crops.

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Source: https://www.legislation.gov.uk/eur/2013/283/annex/section/6/division/6.6/division/6.6.2/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2013-283/annex/section-6/division-6.6/division-6.6.2/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.