# Commission Regulation (EU) No 1332/2011 of 16 December 2011 laying down common airspace usage requirements and operating procedures for airborne collision avoidance (Text with EEA relevance), Division (1): The following turbine-powered aeroplanes shall be equipped with collision avoidance logic version 7.1 of ACAS II:

Extent: E+W+S+N.I.

(a) aeroplanes with a maximum certificated take-off mass exceeding 5 700 kg;
(b) aeroplanes authorised to carry more than 19 passengers.

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Source: https://www.legislation.gov.uk/eur/2011/1332/annex/division/1/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-1332/annex/division-1/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.