(37)Undertakings referred to in point (1)(b) of Article 4(1) of Regulation (EU) No 575/2013 should also be subject to all the requirements for access to the activity of credit institutions laid down in Title III of Directive 2013/36/EU, including the provisions on the withdrawal of authorisation in accordance with Article 18 of that Directive. Article 18 of that Directive should, however, be amended to ensure that competent authorities are able to withdraw the authorisation granted to a credit institution where that credit institution uses its authorisation exclusively to engage in the activities referred to in point (1)(b) of Article 4(1) of Regulation (EU) No 575/2013 and has, for a period of five consecutive years, average total assets below the thresholds set out in that point.