# The Air Navigation Order 2016, Paragraph 18: Airborne collision avoidance system II


Aeroplanes powered by one or more turbine jets or turbine propeller engines and having either—
(a) a maximum take-off mass of more than 5,700kg; or
(b) a maximum approved passenger seating configuration of more than 19,
must be equipped with ACAS II in accordance with the Airborne Collision Avoidance Regulation.

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Source: https://www.legislation.gov.uk/uksi/2016/765/schedule/5/paragraph/18 (the official version)
Page: https://openlegislation.uk/air-navigation-order-2016/schedule-5/paragraph-18
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.