The Norfolk Offshore Wind Farm Order 2003

Noise and vibration

12.—(1) Unless otherwise directed by the Secretary of State, the undertaker—

(a) shall comply with British Standard 5228 (Noise and Vibration Control on Construction and Open Sites) Part 1 and 2: 1997 and Part 4: 1992 in respect of all activities carried out during the construction or decommissioning of the authorised works; and

(b) shall obtain, before the commencement of such activities, the approval by North Norfolk District Council of maximum levels of day time and night time noise to be generated by such activities, and shall ensure that such levels are not exceeded.

(2) Unless otherwise approved in writing by the Secretary of State, the undertaker shall ensure that the rating level of the noise generated by the operation of the wind turbines does not exceed 35dB LA90, up to a wind speed of 10 metres per second, when measured in accordance with the guidance contained in “The Assessment and Rating of Noise from Wind Farms” (ETSU-R-1997), measured in free field conditions at a point 1.2 metres above ground level at any residential property.