Article 1 
From 4 April 2013 to 30 June 2014, the autonomous customs duties on heavy oils and similar products falling under CN code 2707 99 99 destined for use as refinery feedstock to undergo one of the specific processes described in additional note 5 to Chapter 27 of Part Two of the Combined Nomenclature laid down in Annex I to Regulation (EEC) No 2658/87 shall be suspended, provided that the rules on the end-use procedure laid down in Articles 291 to 300 of Regulation (EEC) No 2454/93 are applied. For the purposes of the first paragraph, the retroactive effect of an end-use authorisation as laid down in Article 294(3) of Regulation (EEC) No 2454/93 may be extended to 4 April 2013 provided that all the conditions laid down in Article 294(3) of that Regulation are met.
Article 2 
This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union .