On Friday 2nd October 2020, one more of the nights in the series of meetings produced at the various ELP venues took place as part of "The Nights of the Extended Directory". This time the event was held in the Catalan community under the title "Guarantee and Authorisation", where these terms, in tension with the current era, so crucial for the future of the School, were interrogated under questions such as: What guarantee can we talk about today? What has changed in recent years? How are the agents of analytical discourse authorised to practise psychoanalysis in the era we are going through?