Hot dip galvanizing to EN ISO 1461 and CE marking of structural steelwork to EN 1090. CE Marking for all construction products, covered by a harmonised European standard or conforming to a European Technical Assessment became mandatory from 1 July 2013. CE Marking for fabricated structural steelwork will come into force one year later – on 1 July 2014. This is a major development for engineers, contractors and steelwork fabricators and it demands careful attention to these new obligations. Sub-contract operations are also affected by the CE marking obligations of the steel fabricator.