P&T and uncertainties

P&T could provide much needed flexibility ahead of possible regulatory changes and the difficult issue of accounting for uncertainties in the long-term performance of deep geological repositories.

In fact, the management of uncertainty is an essential feature of the safety case of a geological repository.53 The role of P&T can be seen as a measure to mitigate the importance of the uncertainty, which is inherent to the very long-term nature of the radioactivity. This is achieved essentially by the reduction of the source term.