regularize
verb [ T ]
( UK also regularise) uk/ˈreɡjʊləraɪz/ usto change a system or a situation so that it is controlled by a set of official rules:
This agreement will help regularize trade between our two countries.
We need to regularize the situation with regard to the employment of temporary staff.
regularization
noun [ U ] (UK also regularisation) /ˌreɡjələrɪˈzeɪʃən/
the regularization of the transfer of state assets to private hands