# The Air Navigation (Single European Sky) (Penalties) Order 2009, Article 12: Defence

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

In any proceedings for an offence under article 11(1), (2), (3)(a), (4)(a), (aa), (b), or (f), or (4A) of this Order, it is a defence for the person charged to prove that person took all reasonable steps and exercised all due diligence to ensure that the article in question was complied with.

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Source: https://www.legislation.gov.uk/uksi/2009/1735/article/12 (the official version)
Page: https://openlegislation.uk/air-navigation-single-european-sky-penalties-order-2009/article-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.