CHAPTER I

SUBJECT-MATTER AND DEFINITIONS
Article 2
For the purpose of this Directive, the following definitions shall apply:
1. ‘official’ or ‘officially’ means established, authorised or performed by the responsible official bodies of a Member State as defined in Article 2(1)(g) of Directive 2000/29/EC;
2. ‘resistant potato variety’ means a variety that when grown significantly inhibits the development of a particular population of potato cyst nematodes;
3. ‘investigation’ means a methodical procedure to determine the presence of potato cyst nematodes in a field;
4. ‘survey means’ a methodical procedure conducted over a defined period of time to determine the distribution of potato cyst nematodes in the territory of a Member State.