(5)In view of the above, the Commission considers that L-lysine sulphate produced with Corynebacterium glutamicum CGMCC 23982 satisfies the conditions provided for in Article 5 of Regulation (EC) No 1831/2003. Accordingly, the use of that substance as a feed additive should be authorised. The Commission considers that the safe use of this amino acid in water for drinking, with regard to possible hygiene risks, is to be considered within the scope of Regulation (EC) No 183/2005 of the European Parliament and of the Councilnote laying down requirements for feed hygiene. It is appropriate to alert the user to take into account the dietary supply with all the essential and conditionally essential amino acids, in particular in the case of supplementation with L-lysine sulphate via water for drinking. When fed to ruminants, L-lysine sulphate produced with Corynebacterium glutamicum CGMCC 23982 should be protected against degradation in the rumen. Also, the Commission considers that a maximum level should be set up for L-lysine sulphate produced with Corynebacterium glutamicum CGMCC 23982 due to the potential adverse effects from the intrinsic high sulphate content in the additive. It should be set at 10000 mg/kg of complete feed, which was regarded as safe in the Authority’s opinion of 16 June 2015note issued for another L-lysine sulphate. In addition, the Commission considers that appropriate protective measures should be taken to prevent adverse effects on the health of the users of the additive.