30. Section 49 of the Act of 2000 is amended by inserting the following after subsection (3A):

“(3AA) Subsections (3A), (3B) and (3C) of section 48 shall apply where the basis for the determination of a contribution under subsection (1) has changed subject to—

(a) the modification that references in those subsections to a contribution shall be construed as references to a contribution to a supplementary development contribution scheme,

(b) any other necessary modifications, and

(c) the provisions of this section.”.