Genetically modified maize (Zea mays L.) 1507xNK603 produced by crosses between maize containing DAS-Ø15Ø7-1 and MON-ØØ6Ø3-6 events, as specified in point (b) of the Annex to this Decision, is assigned the unique identifier DAS-Ø15Ø7-1xMON-ØØ6Ø3-6 as provided for in Regulation (EC) No 65/2004.