4. Provided that the data were collected in the same monitoring cycle during which the sampling survey was performed and according to the methodologies referred to in Annex II, Part A, point 2, and Part B, the soil measurements to be carried out by Member States pursuant to paragraph 3 of this Article may consist of, where relevant, the measurements made by:
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(a)
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Member States in accordance with existing national or subnational soil monitoring networks and soil surveys;
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(b)
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Member States in accordance with Union and international law;
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(c)
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private actors, research organisations and other parties, where available.
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For the performance of the first soil measurements as referred to in paragraph 8, the cycle for the collection of the data referred to in the first subparagraph of this paragraph shall, to the extent that those data are available, start on 16 December 2024.