Changes made by Directive 2009/3/EC of the European Parliament and of the Council of 11 March 2009 amending Council Directive 80/181/EEC on the approximation of the laws of the Member States relating to units of measurement
EU Directive 2009/3
The legislation Directive 2009/3/EC of the European Parliament and of the Council of 11 March 2009 amending Council Directive 80/181/EEC on the approximation of the laws of the Member States relating to units of measurement changes, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.