By way of derogation from Articles 12, 13 and 14, animal by-products may be:

1. (a)

   in the case of animal by-products referred to in point (a) of the first subparagraph of Article 15(1), handled and disposed of in accordance with special conditions laid down pursuant to that point;

2. (b)

   used for research and other specific purposes in accordance with Article 17;

3. (c)

   in the case of animal by-products referred to in Article 18, used for special feeding purposes in accordance with that Article;

4. (d)

   in the case of animal by-products referred to in Article 19, disposed of in accordance with that Article;

5. (e)

   disposed of or used in accordance with alternative methods which have been authorised in accordance with Article 20, based on parameters which may include pressure sterilisation or other requirements of this Regulation or the implementing measures thereof;

6. (f)

   in the case of Category 2 and Category 3 materials and if authorised by the competent authority, used for the preparation and application to land of bio-dynamic preparations as referred to in Article 12(1)(c) of Regulation (EC) No 834/2007;

7. (g)

   in the case of Category 3 material and, if authorised by the competent authority, used for feeding to pet animals;

8. (h)

   in the case of animal by-products, except for Category 1 material, which arise in the course of surgical intervention on live animals or during birth of animals on farm and, if authorised by the competent authority, disposed of on that farm.