Commission Regulation (EC) No 250/2009 of 11 March 2009 Implementing Regulation (EC) No 295/2008 of the European Parliament and of the Council as Regards the Definitions of Characteristics, the Technical Format for the Transmission of Data, the Double Reporting Requirements for NACE Rev.1.1 and NACE Rev.2 and Derogations to Be Granted for Structural Business Statistics