Waste products are categorised as high, intermediate or low‐level, based on the amount of radioactive activity they emit. Low‐level waste is typically from medical applications such as hospitals and is disposed of by incineration or burial. Intermediate‐level waste is produced during reactor operation and reprocessing, and is packed and stored on the reactor site to await final disposal. High‐level waste is the radioactive fission products produced during power generation. After extraction through reprocessing these go through a vitrification process which encapsulates it into a solid, insoluble glass form. They are packaged in vitrified residue containers and transported via rail and sea to temporary storage facilities pending final disposal.