the process of safely closing a nuclear power plant (or other facility where nuclear materials are handled) to retire it from service after its useful life has ended, shutting down and placing a plant permanently out of service, administrative and technical actions taken to allow the removal of some or all of the regulatory controls from a facility, protsess, mille käigus töö lõpetanud tuumaelektrijaam või muu tuumamterjale käitlev rajatis turvaliselt likvideeritakse