Section 63 of the Principal Act is amended—
(a) by inserting in subsection (3) “or approval” after “permit” (wherever occurring);
(b) by inserting in subsection (3A) “or approval” after “permit” (wherever occurring); and
(c) by adding at the end the following subsection:
“(6) In this section—
‘building permit' means a building permit granted under this Act before the commencement of section 11 of the Building (Amendment) Act (No. 2) 1998 .”.