1. Member States shall transmit data and metadata to the Commission (Eurostat) in electronic form via the single entry point services in accordance with the statistical data and metadata exchange standards.
2. Confidential data as defined in Regulation (EC) No 223/2009 of the European Parliament and of the Council ( 19 ) shall be flagged appropriately when transmitted to the Commission (Eurostat).
1. Member States shall annually review and update their HICP and HICP-CT metadata for the current year and transmit them to the Commission (Eurostat) by 31 March.
2. Member States shall annually review and update their OOH price index and HPI metadata for the current year and transmit them to the Commission (Eurostat) by 30 June.