The F1responsible authorities shall carry out official inspections relating to the production and marketing of experimental material. F2... such official inspections shall cover at least:

1. (a)

   verification of the declarations of quantities intended to be produced and the notifications of quantities marketed;

2. (b)

   the analytical purity, content of other species and germination of true potato seed;

3. (c)

   compliance of the producer and any person marketing experimental material with the requirements set out in this Decision.

The inspections relating to point (b) of the first paragraph shall take place at least once per year. They shall include inspections of the premises of the persons concerned and the fields and greenhouses used for the production of true potato seed and experimental seedlings.