5.The competent authorities shall grant such extension on the following conditions:
5.1.
the new type of roll-over protection structure and its tractor attachment have received EC component type-approval;
5.2.
it is designed to be mounted on the type of tractor for which the extension of the EC type-approval is requested;
5.3.
the attachment of the protection structure to the tractor corresponds to that which was tested when EC component type-approval was granted.