As of July 1st 2014, the Construction Products Regulation (CPR, EU 305/2011) became effective for sealants throughout the European Union. This regulation requires all construction products for which a harmonized standard exists, to be CE marked and supplied with a Declaration of Performance (DoP). In this DoP all essential characteristics including their level or class are specified, according to the standard. This DoP has to be supplied in paper or digitally and has to be saved for up to 10 years.