Approved by the Governing Council in session no. 5/2009, of 28 May (PDF), and amended by the Governing Council in sessions no. 8/2012, of 20 December (eBOU-430); no. 5/2014, of 19 June (eBOU-648), and no. 1/2016, of 25 February (eBOU-834), and no. 5/2019, of 16 July (eBOU-1669)