# The Oil and Fibre Plant Seeds Regulations 1993, Paragraph 7: Isolation distances


For turnip rape, swede rape, brown mustard, black mustard and white mustard the minimum distance from neighbouring crops or plants or other species or of other varieties of the same species liable to cross-pollinate with the crop shall be for—
(a) crops to produce Basic Seed, 400 metres,
(b) crops to produce Certified Seed, 200 metres,
(c) crops to produce—
(i) Basic Seed of hybrids of sunflower, 1500 metres;
(ii) Basic Seed of sunflower, other than hybrids, 750 metres;
(iii) Certified Seeds of sunflower, 500 metres,
with the approval of the Minister these distances may be modified if there is adequate protection against undesirable pollen.

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Source: https://www.legislation.gov.uk/uksi/1993/2007/schedule/4/paragraph/7 (the official version)
Page: https://openlegislation.uk/oil-and-fibre-plant-seeds-regulations-1993/schedule-4/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.