Since the regulation urges the Public Administration to facilitate the use of the "sense name" by trans persons (art. 23.1 Law 11/2014), the processing of this data is not excessive for the purposes of the principle of minimisation, and may be lawful if carried out on the legal basis of the consent of the person concerned. Treatment of the "sense name", as identifying data relating to a natural person's gender identity or expression, does not, in principle, involve processing data from special categories. The identification information of the person concerned must also be dealt with in official documents (DNI/NIE or passport), in order to ensure the identification and, among other things, the principle of the accuracy of the information and its traceability.