The harmonised area of construction products at the EU level is regulated by REGULATION (EU) No 305/2011 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 9 March 2011 laying down harmonised conditions for the marketing of construction products and repealing Council Directive 89/106/EEC (hereinafter: Regulation (EU) No 305/2011).Pursuant to Article 19 of Regulation (EU) No 305/2011, following a request for a European Technical Assessment by a manufacturer, a European Assessment Document (EAD) shall be drawn up and adopted by the organisation of TABs (EOTA) for any construction product not covered or not fully covered by a harmonised standard, for which the performance in relation to its essential characteristics cannot be entirely assessed according to an existing harmonised standard.