# The Air Navigation Order 2016, Paragraph 7: Marking of break-in areas


(1) If areas of the aircraft's fuselage suitable for break-in by rescue crews in an emergency are marked, such areas must be marked in accordance with the following diagram.
(2) The colour of the markings must be red or yellow and, if necessary, must be outlined in white to contrast with the background.
(3) If the corner markings are more than 2 metres apart, intermediate lines measuring 9 centimetres by 3 centimetres must be inserted so that there is no more than 2 metres between adjacent markings.

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Source: https://www.legislation.gov.uk/uksi/2016/765/schedule/5/paragraph/7 (the official version)
Page: https://openlegislation.uk/air-navigation-order-2016/schedule-5/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.