10SFor section 18 (responsibility for deficiency), there shall be subtituted the following section:—
“18 Responsibility for deficiency.
Any deficiency which is required to be met out of rates in pursuance of section 16 of this Act shall be met by the regional or islands council in whom the marine work is vested, or in the case of a marine work vested in two or more such councils in combination, by those councils in such proportions as may be fixed by the combination agreement.”