Based on historical radiological data, current characterisation of radioactive waste integrates the measurement of becquerel levels of radioactivity, exposure, absorbed dose, and dose equivalent. Weaknesses of this methodology come from the probabilities of an over-characterisation or unexpected contamination. Additionally, events like the Fukushima accident has made  the identification more difficult due to some unknown radioactive materials, in particular regarding their chemical composition.

INSIDER aims to improve the establishment of harmonised guidelines useful for industry, stakeholders and the R&D community. A better radioactive waste management that will result from the INSIDER project is in line with the framework of the COP21 conference and the Paris Agreement which aims to limit the rise of global temperatures to 2°C by 2100.