The Commission shall be empowered to adopt delegated acts in accordance with Article 264 concerning:

1. (a)

   the design, means, diagnostic methods, frequency, intensity, targeted animal population, and sampling patterns of the surveillance provided for in Article 27;

2. (b)

   the criteria for the official confirmation and case definitions of listed diseases as referred to in point (e) of Article 9(1), and, where relevant, of emerging diseases;

3. (c)

   the criteria used to establish the relevance of a disease which is to be subject to a surveillance programme relevant for the Union for the purposes of point (a) of Article 30(1), taking into account the disease profile and the risk factors involved;

4. (d)

   requirements for surveillance programmes as provided for in Article 28(1) regarding:

   1. (i)

      the contents of surveillance programmes;

   2. (ii)

      the information to be included in the submission of surveillance programmes in accordance with Article 28(2) and regular reports in accordance with Article 28(3);

   3. (iii)

      the period of application of surveillance programmes.