Member States may adopt such additional or stricter measures as may be required to combat the organism or to prevent it from spreading, in so far as they are in compliance with the provisons of Directive 77/93/EEC.
The additional measures mentioned in the first subparagraph may include the prescription that only seed potatoes may be planted that are either officially certified or officially inspected to meet the required plant health standards. The latter may apply in particular in case farmers are authorized to use, on their own holding, seed potatoes which they have obtained from their own harvest and in other cases that own-produced seed potatoes are planted.
The details of these measures shall be notified to the other Member States and to the Commission.