29.10.2008 Official Journal of the European Union L 285/3 COMMISSION REGULATION (EC) No 1062/2008 of 28 October 2008 implementing Regulation (EC) No 453/2008 of the European Parliament and of the Council on quarterly statistics on Community job vacancies, as regards seasonal adjustment procedures and quality reports (Text with EEA relevance) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Community, Having regard to Regulation (EC) No 453/2008 of the European Parliament and of the Council of 23 April 2008 concerning quarterly statistics on Community job vacancies ('), and in particular Article 3(3) and 6(3) thereof, Whereas: (1) Regulation (EC) No 453/2008 established a common framework for the systematic production of quarterly statistics on Community job vacancies. (2)  Seasonal adjustment is an essential part of the compi- lation of short-term statistics. Adjusted series facilitate the comparison and interpretation of results over time. The transmission of adjusted series increases the coherence between data disseminated nationally and at international level. (3)  For the purposes of applying the quality dimensions laid down in Article 6(1) of Regulation (EC) No 453/2008, the modalities, the structure and the periodicity of the quality reports to be provided by Member States should be defined. (4)  The European Central Bank has been consulted. (5)  The measures provided for in this Regulation are in accordance with the opinion of the Statistical Programme Committee, HAS ADOPTED THIS REGULATION: Atticle 1 Seasonal adjustment procedures For the purpose of applying Article 3(3) of Regulation (EC) No 453/2008, the transmission of seasonally adjusted data shall start at the latest when time series with 16 observed periods at least are available at the aggregation level of NACE Rev. 2 specified in Annex 1. The number of periods shall be counted starting from the first non-seasonally adjusted data required according to Regulation (EC) No 453/2008. Atticle 2 Quality reports 1. The modalities and the structure of the quality reports provided for by Article 6(2) of Regulation (EC) No 453/2008 shall be as set out in Annex 2. 2. The quality reports shall be transmitted to the Commission by 31 August each year at the latest and shall relate to the previous calendar year. The first quality report shall be transmitted by 31 August 2011 at the latest. Atticle 3 Entry into force This Regulation shall enter into force on the 20th day following its publication in the Official Journal of the European Union. This Regulation shall be binding in its entirety and directly applicable in all Member States. Done at Brussels, 28 October 2008. () O] L 145, 4.6.2008, p. 234. For the Commission Joaquin ALMUNIA Member of the Commission