Annex IV CRITERIA FOR THE AGGREGATION OF DATA AND THE CALCULATION OF STATISTICAL PARAMETERSF1 United Kingdom Repealed Original text. Later amendments are not shown. These criteria mainly concern the data capture Annotations Textual amendments F1 Repealed by Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe. ← Annex III Annex IV Division →