Cyllid & Thollau EM

What ID is needed for Registered Excise Dealers and Shippers (REDS) and Temporary Registered Consignees (TRC's) to enrol for EMCS?

Registered Excise Dealers and Shippers, Registered Consignors and Temporary Registered Consignees have a single 13 digit Excise Registration Number (ERN) which should be used to enrol for EMCS.