The concerned Member States shall ensure that:

1. (a)

   the surveillance zones established by their competent authorities in accordance with Article 16(1)(b) of Directive 2005/94/EC, comprise at least the areas listed as surveillance zones in Part B of the Annex to this Decision;

2. (b)

   the measures to be applied in the surveillance zones, as provided for in Article 31 of Directive 2005/94/EC, are maintained until at least the dates for the surveillance zones set out in Part B of the Annex to this Decision.