For a transitional period until 27 September 2015, consignments of animal by-products and of derived products accompanied by a model declaration, which has been completed and signed in accordance with the model set out in Chapter 20 of Annex XV to Regulation (EU) No 142/2011 in its version before the date of entry into force of this Regulation, shall continue to be accepted for importation into the Union, provided that such model declarations were completed and signed before 27 July 2015.