# The Plant Health (EU Exit) Regulations 2019, Paragraph 6


Official surveys carried out pursuant to paragraph 1(h) must—
(a) consist of visual examinations and, in the case of any suspicion of infection by Xylella fastidiosa (Wells et al.), the collection of samples and testing;
(b) be based on sound scientific and technical principles;
(c) be carried out at appropriate times of the year;
(d) take account of the available scientific and technical evidence, the biology of the plant pest and its vectors, the presence and the biology of the relevant material which may host or become infected with the plant pest; and
(e) include the screening of the plant pest in areas which have been demarcated under Schedule 15 by one molecular test and, where the test is positive, by the carrying out, in line with international standards, of at least one additional positive molecular test.

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Source: https://www.legislation.gov.uk/ukdsi/2019/9780111177563/schedule/9/paragraph/6 (the official version)
Page: https://openlegislation.uk/draft-plant-health-eu-exit-regulations-2019/schedule-9/paragraph-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.