# Civil Aviation Act 1971, Paragraph 14


A document purporting to be duly executed under the seal of the Board shall be received in evidence and shall, unless the contrary is proved, be deemed to be so executed.

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Source: https://www.legislation.gov.uk/ukpga/1971/75/schedule/8/paragraph/14 (the official version)
Page: https://openlegislation.uk/civil-aviation-act-1971/schedule-8/paragraph-14
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.