Each technical working group is chaired by an administration or recipient body designated by the strategic steering committee. It is made up of a representative of the single body and representatives of the bodies and administrations to which the business formalities submitted to the single body are sent. Ex-officio members may be represented.
Experts may be involved in the work of the working group as required.
The secretariat for each working group is provided by a representative appointed for this purpose by the strategic steering committee, depending on the subjects dealt with.