Division 2 The background level shall be calculated for those activities listed in Article 3(1), where the Member State intends to apply the Natural Disturbances provisions, as the average of the 1990-2009 time series excluding all years where abnormal levels of emissions were recorded, i.e. excluding all statistical outliers. The identification of statistical outliers shall be made following an iterative process described as follows:F1

United Kingdom Repealed