Quality assurance
Article 7
1. Member States shall ensure the quality of the data provided in accordance with this Regulation. To that end, the standard quality criteria laid down in Article 12(1) of Regulation (EC) No 223/2009 apply. 2. Member States shall inform the Commission (Eurostat), without delay, of any methodological or other changes that might have a significant impact on natural gas and electricity price statistics, and in any event no later than one month after that change occurs. 3. Every three years, Member States shall provide the Commission (Eurostat) with a standard quality report on the data in accordance with the quality criteria laid down in Article 12(1) of Regulation (EC) No 223/2009. Those reports shall include information on the scope and collection of the data, the calculation criteria, the methodology and data sources used, and any changes thereto. 4. The Commission (Eurostat) shall assess the quality of the data provided and shall use that assessment and an analysis of the quality reports referred to in paragraph 3 in order to prepare and publish a report on the quality of European statistics covered by this Regulation. 5. The Commission shall adopt implementing acts establishing technical quality assurance requirements regarding the content of the quality reports referred to in paragraph 3 of this Article. Those implementing acts shall be adopted in accordance with the examination procedure referred to in Article 10(2).