This Practice Note considers the release of security following the full or partial satisfaction of a secured debt. It looks at some preliminary issues to consider before any release is effected and the steps that must be taken to register the release of security at the Companies Registrations Office and/or on an asset register (eg at Tailte Éireann, Registry of Deeds, at the Central Bank of Ireland, on the Register of Ships, at the Irish Aviation Authority or at the Intellectual Property Office of Ireland).