Commission Directive 2009/37/EC of 23 April 2009 amending Council Directive 91/414/EEC to include chlormequat, copper compounds, propaquizafop, quizalofop-P, teflubenzuron and zeta-cypermethrin as active substances (Text with EEA relevance) (c. 37)

Article 4

This Directive shall enter into force on 1 December 2009.