# The Air Navigation (Hong Kong) Order 1995, Paragraph 1


The nationality mark of the aircraft shall be a group of two capital letters in Roman character assigned by the Governor on the registration of the aircraft. The letters shall be without ornamentation and a hyphen shall be placed between the nationality mark and the registration mark.

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Source: https://www.legislation.gov.uk/uksi/1995/2700/schedule/1/part/B/paragraph/1 (the official version)
Page: https://openlegislation.uk/air-navigation-hong-kong-order-1995/schedule-1/part-B/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.