Commission Implementing Regulation (EU) No 832/2013 of 30 August 2013 approving the active substance disodium phosphonate, 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, and amending the Annex to Implementing Regulation (EU) No 540/2011 Text with EEA relevance