9. The expert from IWG SLR requested advice on various options of how to use the Unique Identifier (UI) for the new simplified UN Regulations (GRE-81-20). GRE mandated the secretariat to send GRE-81-20 to IWG on Database for the Exchange of Type Approval documentation (DETA) for comments, and requested IWG SLR to consider delegating one of its experts to participate in IWG DETA sessions. Finally, GRE decided to revert to this issue at the next session.