Changes made by Commission Regulation (EC) No 1812/2005 of 4 November 2005 amending Regulations (EC) Nos 490/2004, 1288/2004, 521/2005 and 833/2005 as regards the conditions for the authorisation of certain additives in feedingstuffs belonging to the groups of enzymes and micro-organisms (Text with EEA relevance): Commission Regulation (EC) No 521/2005 of 1 April 2005 concerning the permanent authorisation of an additive and the provisional authorisation of new uses of certain additives already authorised in feedingstuffs (Text with EEA relevance)