1.The Commission shall be empowered to adopt delegated acts, in accordance with Article 9a, concerning technical amendments to Annex I, to adapt the definitions to changes in international definitions, and concerning amendments to Annexes II to VI.
Those delegated acts shall be adopted only where they are necessary in order to take account of economic and technical developments, they do not change the optional nature of required information and they do not impose a significant additional burden on Member States or on the respondents.
The Commission shall duly justify the statistical actions provided for in those delegated acts, using, where appropriate, input from relevant experts based on a cost-effectiveness analysis, including an assessment of the burden on the respondents and of the production costs, as referred to in point (c) of Article 14(3) of Regulation (EC) No 223/2009 of the European Parliament and of the Council 7.
2.The Commission shall adopt implementing acts laying down the format in which statistics shall be submitted. Those implementing acts shall be adopted in accordance with the examination procedure referred to in Article 10(2).