19.—(1) To determine whether a supplier has achieved its—
(a)total carbon emissions reduction obligation;
(b)total carbon saving community obligation; or
(c)total home heating cost reduction obligation,
the Administrator must attribute a carbon or cost saving, as applicable, to each qualifying action notified by a supplier under article 16.
(2) The Administrator must attribute to a qualifying action—
(a)where the Administrator is satisfied that the supplier has correctly calculated the carbon or cost saving, as applicable, the carbon or cost saving notified by the supplier; or
(b)where the Administrator is not satisfied that the carbon or cost saving notified to be correctly calculated, the carbon or cost saving, as applicable, which the Administrator considers would have been determined for the action had it been accurately calculated.
(3) The Administrator must notify a supplier of the saving it has attributed to a qualifying action notified by a supplier.