Changes made by Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres
EU Directive 1994/9
The legislation Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres changes, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.