Article 10
1. Where the trend in imports of a product originating in a third country covered by this Regulation threatens to cause injury to Union producers, and where the interests of the Union so require, import of that product may be subject, as appropriate, to: (a) retrospective Union surveillance carried out in accordance with the provisions laid down in the decision referred to in paragraph 2; (b) prior Union surveillance carried out in accordance with Article 11. 2. The decision to impose surveillance shall be taken by the Commission by means of implementing acts in accordance with the advisory procedure referred to in Article 3(2). 3. The surveillance measures shall have a limited period of validity. Unless otherwise provided, they shall cease to be valid at the end of the second 6-month period following the 6 months in which the measures were introduced.