13. The powers conferred by article 12 may be exercised by the shadow authority only—
(a)in the discharge of the functions specified or referred to in articles 6 to 9, 11 and 15;
(b)in the same manner, and subject to the same conditions and limitations, as if it were a non-metropolitan county council or a non-metropolitan district council; and
(c)where the exercise of the power would involve incurring expenditure or acquiring a liability—
(i)with the prior consent of the county council, where the expenditure or liability relates to a matter which, before 1st April 2020, is the responsibility of that council; or
(ii)where the expenditure or liability relates to a matter which, before 1st April 2020, is the responsibility of a district council, with the prior consent of that council.