The years when, because of unfavourable weather conditions, products from wine-growing zones A and B not possessing the minimum natural alcoholic strength by volume laid down for the relevant wine-growing zone may be used, under the conditions laid down in Article 44(3) of Regulation (EC) No 1493/1999, for the production of sparkling wine, aerated sparkling wine and aerated semi-sparkling wine shall be as set out in Annex II hereto.