Article 4
1.
Member States shall ban the introduction into their territory of the plants or plant products listed in Annex III, Part A where they originate in the relevant countries referred to in that part of the Annex.
2.
Member States shall provide that, from 1 June 1993, the introduction of plants, plant products and other objects listed in Annex III, Part B into the relevant protected zones located in their territory is prohibited.
3.
F1In accordance with the procedure referred to in Article 18(2), Annex III shall be revised in such a way that Part A contains plants, plant products and other objects which constitute a plant-health risk for all parts of the Community, and Part B contains plants, plant products and other objects which constitute a plant-health risk only for protected zones. The protected zones shall be specified there.
4.
With effect from 1 June 1993, paragraph 1 shall no longer apply to plants, plant products and other objects originating in the Community.
5.
Paragraphs 1 and 2 shall not apply, in accordance with conditions which shall be determined F1in accordance with the procedure referred to in Article 18(2), for trials or scientific purposes and for work on varietal selections.
6.
Provided that there is no risk of harmful organisms spreading, a Member State may provide that paragraphs 1 and 2 shall not apply in individual specified cases to plants, plant products and other objects which are grown, produced or used in its immediate frontier zone with a third country and introduced into that Member State in order to be worked in nearby locations in the frontier zone of its territory.
When granting such a derogation, the Member State shall specify the location and the name of the person working it. Such details, which shall be updated regularly, shall be available to the Commission.
Plants, plant products and other objects which form the subject of a derogation under the first subparagraph shall be accompanied by documentary evidence of the location in the relevant third country from which the said plants, plant products and other objects originate.