# 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, Article 9: Identifier Management

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

1. The data type Identifier defined in Section 2.1 of Annex I shall be used as a type for the external object identifier of a spatial object.
2. The external object identifier for the unique identification of spatial objects shall not be changed during the life-cycle of a spatial object.

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Source: https://www.legislation.gov.uk/eur/2010/1089/article/9 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-1089/article-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.