Article 1 
The ad hoc Working Party on Article 50 TEU is hereby established. It shall be chaired by the General Secretariat of the Council.
Article 2 
The ad hoc Working Party on Article 50 TEU shall assist Coreper and the Council in all matters pertaining to the withdrawal of the United Kingdom from the Union. It shall cease to exist when its mandate has been fulfilled.
Article 3 
This Decision shall enter into force on the date of its adoption.