Article 2

This Regulation shall enter into force on the day following that of its publication in the Official Journal of the European Union.

Article 1(1), Article 1(2)(a), Article 1(3)(a) and Article 1(4)(a) shall apply from the day following that on which the Treaties cease to apply to and in the United Kingdom pursuant to Article 50(3) of the Treaty on European Union.

Article 1(2)(b), Article 1(3)(b), Article 1(4)(b) and Article 1(5) shall apply from the day the United Kingdom accedes to the Convention on a common transit procedure.

However, this Regulation shall not apply if a withdrawal agreement concluded with the United Kingdom in accordance with Article 50(2) of the Treaty on European Union has entered into force by the date following that on which the Treaties cease to apply to and in the United Kingdom pursuant to Article 50(3) of the Treaty on European Union.