# Commission Delegated Regulation (EU) 2020/689 of 17 December 2019 supplementing Regulation (EU) 2016/429 of the European Parliament and of the Council as regards rules for surveillance, eradication programmes, and disease-free status for certain listed and emerging diseases (Text with EEA relevance), Division 3: The status free from infection with Bonamia exitiosa may only be maintained as long as all samples, using the diagnostic methods set out in point 2 of Section 5 have produced negative results for Bonamia exitiosa and any suspicion of infection with Bonamia exitiosa has been ruled out in accordance with the diagnostic methods set out in point 3 of Section 5.

Extent: E+W+S+N.I.

Table 4.B
Scheme for Member States, zones or compartments to maintain status free from infection with Bonamia exitiosa
Risk level assigned to the establishment by the competent authority as set out in paragraph 1 of Chapter 2 of Part I other than in the case of dependent compartments where all establishments are deemed to be high risk.
Risk level
Number of health visits to each establishment/group of establishments
Number of laboratory examinations
Number of molluscs in the sample
High
1 every year
1 every 2 years
150
Medium
1 every 2 years
1 every 2 years
150
Low
1 every 3 years
1 every 3 years
150

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Source: https://www.legislation.gov.uk/eur/2020/689/annex/VI/chapter/4/section/4/division/3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2020-689/annex-VI/chapter-4/section-4/division-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.