# The Air Navigation Order 1989, Paragraph 3


The nationality and registration marks shall also be inscribed, together with the name and address of the registered owner of the aircraft, on a fire-proof metal plate affixed:
(a) in the case of an aeroplane having an empty weight not exceeding 150kg. either in accordance with paragraph (b) or in a prominent position to the wing; or
(b) in the case of any other aircraft in a prominent position on the fuselage or car or basket, as the case may be, and near to the main entrance to the aircraft.

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Source: https://www.legislation.gov.uk/uksi/1989/2004/schedule/1/part/B/paragraph/3 (the official version)
Page: https://openlegislation.uk/air-navigation-order-1989/schedule-1/part-B/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.