CE mark is obligatory for all construction products placed on market in EU countries.
Comité Européen de Normalisation ( CEN ) has published standards ( hEN, harmonized European Standards ) for tempered glass and heat strengthened glass, that specify, in any EU country,
Glass products intended to be used in building must carry a CE mark, which means that the marked product complies with European technical specifications and has been subject to appropriate conformity assessment procedures.
The manufacturer is responsible for organizing the evaluation of conformity that is based on