# The Mona Offshore Wind Farm Order 2025, Paragraph 3: Aviation safety

Extent: E+W

(1) The undertaker must exhibit such lights, with such shape, colour and character and at such times as are required by Air Navigation Order 2016 and/or determined necessary for aviation safety in consultation with the Defence Infrastructure Organisation Safeguarding and as directed by the Civil Aviation Authority. Lighting installed specifically to meet Ministry of Defence aviation safety requirements must remain operational for the life of the authorised project unless otherwise agreed with the Defence Infrastructure Organisation Safeguarding.
(2) The undertaker must notify Defence Infrastructure Organisation Safeguarding and the Civil Aviation Authority, at least 14 days prior to the commencement of the offshore works, of the following—
(a) the date of the commencement of construction of the offshore works;
(b) the expected date any wind turbine generators are brought into use;
(c) the maximum height of any construction equipment to be used;
(d) the maximum heights of any wind turbine generator and offshore substation platform to be constructed; and
(e) the latitude and longitude of each wind turbine generator and offshore substation platform to be constructed.
(3) The Defence Infrastructure Organisation Safeguarding and the Civil Aviation Authority must be notified of any changes to the information supplied under sub-paragraph (2) and of the completion of the construction of the offshore works.
(4) The lights installed in accordance with sub-paragraph (1) will be operated at the lowest permissible light intensity level.

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Source: https://www.legislation.gov.uk/uksi/2025/870/schedule/2/paragraph/3 (the official version)
Page: https://openlegislation.uk/mona-offshore-wind-farm-order-2025/schedule-2/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.