Nondestructive examination methods are particularly useful in characterizing radioactive waste. Radiographic examinations combined with tomodensitometric examinations (scanner) using a gamma-ray photon source make it possible to conduct exhaustive testing of the physical homogeneity of a low- or medium-activity waste package. These methods provide original experimental data for the following purposes: (a) preliminary characterization of packages for approval of the treatment process, (b) quality control of the produced packages (production control at the producer’s site and counterchecks by the waste control organism), (c) examination of packages, and (d) activity computation codes based on the emergent activity. The selection criteria, the physical principles, and the originality of the tool and some of its applications are described.