Maintenance work and modifications on the Joint European Torus (JET) machine give rise to wastes that are contaminated with beryllium, activation products and tritium. During the Deuterium (D-D) Phase the tritium levels on the wastes have been negligible. However, plans to conduct a Preliminary Tritium Experiment (PTE) in 1991 would result in tritiated wastes being generated. Estimates have been made of waste volume arisings and their activity contents for both the D-D and Tritium (D-T) Phases of JET. Appropriate discharge Authorisations are in place or have been applied for. Waste handling and quality assurance procedures as well as the facilities for handling the wastes will build on those already in place for the handling of beryllium contaminated and low level radwastes produced during the D-D Phase.