# 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 4.3

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

Where studies are conducted using an active substance of different purity or which contains different impurities or different levels of impurities to the technical specification or where the active substance is a mixture of components, the significance of the differences shall be addressed either by data or scientific case. In cases of uncertainty, appropriate studies using the active substance as manufactured for commercial production shall be submitted to serve as a basis for a decision.

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Source: https://www.legislation.gov.uk/eur/2013/283/annex/division/INTRODUCTION/division/4/division/4.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2013-283/annex/division-INTRODUCTION/division-4/division-4.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.