"Source materials" means uranium containing the mixture of isotopes occurring in nature: uranium whose content in uranium-235 is less than the normal; thorium; any of the foregoing in the form of metal, alloy, chemical compound or concentrate; any other substance containing one or more of the foregoing in such a concentration as shall be specified by the Council, acting by a qualified majority on a proposal from the Commission.
Ciallaíonn "bunábhair" úráiniam ina bhfuil an meascán iseatóipi atá sa nádúr; úráiniam ar lú ná an normal an don d'úráiniam-235 atá ann; tóiriam; aon cheann de na hábhair roimhe seo i bhfoirm miotail, cóimhiotail, comhdhúile ceimicí nó tiubhacháin; substaint ar' bith eile ina bhfuil ceann amháin nó níos mó de na hábhair roimhe seo i dtiubhachán mar a shonróidh an Chomhairle, ag gniomhú di tri thromlach cáilithe ar thogra ón gCoimisiún.