The regulation no. 305/2011/CE of the European Parliament dated 9 March 2011 laid down the harmonized conditions for the marketing of construction products. This Regulation shall enter into force from July 1, 2013. It lays down conditions for the placing or making available on the market of construction products by establishing harmonized rules on how to express the performance of construction products in relation to their essential characteristics and on the use of CE marking on those products. The manufacturer of a product that is covered by a harmonized standard shall draw up a declaration of performance. More information can be requested by mail.