For experiments for scientific purposes, F1the appropriate authority may authorise the use, as additives, of substances which are not authorised F2..., with the exception of antibiotics, provided that the experiments are carried out in accordance with the principles and conditions laid down in F3Regulation (EC) No 767/2009 or the guidelines set out in Article 7(4) of this Regulation and provided that there is adequate official supervision. The animals concerned may be used for food production only if the authorities establish that this will have no adverse effect on animal health, human health or the environment.

In the case of additives belonging to categories (d) and (e) of Article 6(1) and of those additives falling within the scope of F4... legislation relating to the marketing of products consisting of, containing or produced from genetically modified organisms (GMOs), no person other than the holder of the authorisation named in the authorisation F5... referred to in Article 9, his legal successor or successors, or a person acting under his written authority, shall first place the product on the market.

Unless otherwise specified, the mixing of additives to be sold directly to the end-user shall be allowed, subject to compliance with the conditions for use laid down in the authorisation for each single additive. Consequently, the mixing of authorised additives shall not be subject to specific authorisations other than the requirements laid down in F6Regulation (EC) No 183/2005.

Where necessary, as a result of technological progress or scientific development, the appropriate authority may prescribe changes to the general conditions set out in Annex 4.