13. Where an inspector is satisfied that a place of production is contaminated for the purposes of Article 5(1)(a) of Directive 93/85/EC and a unit of protected crop production at that place has also been so designated and complete replacement of the growing medium is possible in that unit—
(a)a person must not plant in the unit any potato tubers, plants or true seeds without the written authority of an inspector; and
(b)an authorisation under paragraph (a) must not be granted unless the measures specified in the notice referred to in paragraph 8, which must include at least those specified in paragraph 14, have been complied with.