1.This Regulation shall enter into force on the 20th day following its publication in the Official Journal of the European Union.
[F12. Article 3 shall apply as of 1 March 2012 .
3. By way of derogation from paragraph 2, in the case of aircraft with an individual certificate of airworthiness issued before 1 March 2012 , Article 3 shall apply as of 1 December 2015 .]