(18)A DLT SS should be a settlement system operated by a CSD authorised under Regulation (EU) No 909/2014 that has received a specific permission to operate a DLT SS under this Regulation. A DLT SS, and the CSD which operates it, should be subject to all relevant requirements under Regulation (EU) No 909/2014, and any other applicable Union financial services legislation, except for requirements in respect of which an exemption has been granted in accordance with this Regulation.