# Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services, Division (2): For SpeciesDistributionUnit spatial objects,

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

(a)if a species has not been actively searched for, the distributionInfo attribute shall be void with reason ‘unknown’,
(b)and if a species has been actively searched for, but has not been found, the value of the attribute occurenceCategory of DistributionInfoType shall be ‘absent’.

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Source: https://www.legislation.gov.uk/eur/2010/1089/annex/IV/division/18/division/18.5/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-1089/annex-IV/division-18/division-18.5/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.