24. The secretariat delivered a presentation (GRE-71-21) outlining the progress made in establishing the Database for the Exchange of Type Approval documentation (DETA) which, inter alia, would allow the simplification of the approval markings by implementing the “unique identifier” (UI) function. GRE noted that, until all Contracting Parties adopt the DETA marking scheme, the use of UI may remain optional, unless stated otherwise in a given UN Regulation. GRE agreed to resume consideration of this item at its October 2014 session.