European directive 2002/91/CE (EPDB) with transposition in Spain by means of:

RD 47/2007 of 19 of January 2007 is approvedand it provides the procedure to certificate energy efficiency of new construction buildings (energy efficiency label)

Mityc - Ministry of Industry, Tourism and Commerce. Ciemat - Energy, Environmental and technological Research Center. Idae - Institute for the diversification and energy saving. Icaen - Catalan Institute of the Energy. Environment Department of the Generalitat de Catalunya

Decret 21/2006 of 14 of February 2006 of Generalitat de Catalunya, that regulates the adoption of environmental criteria and ecoeficiency in buildings.