# The Plant Health (EU Exit) Regulations 2019, Paragraph 29


The appropriate UK plant health authority may lift the demarcation which applies to a demarcated area if—
(a) official surveys show that the plant pest has not been found to be present in the demarcated area in the four years prior to the lifting of the demarcation; or
(b) the appropriate UK plant health authority has evidence from the surveys carried out for the presence of the vector in accordance with ISPM No. 4 that the vector has not been present in the area for the three years prior to the lifting of the demarcation, and the absence of the vector has been confirmed by sampling and testing.

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Source: https://www.legislation.gov.uk/ukdsi/2019/9780111177563/schedule/13/paragraph/29 (the official version)
Page: https://openlegislation.uk/draft-plant-health-eu-exit-regulations-2019/schedule-13/paragraph-29
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.