(1) In section 2(1)(b) of the Principal Act—
(a) for subparagraph (i) substitute —
"(i) mineral and stone resources are developed in ways that minimise adverse impacts on the environment and the community; and";
(b) for subparagraph (iii) substitute —
"(iii) land which has been mined or from which stone has been extracted or removed is rehabilitated; and"
(c) in subparagraph (iv) after "private land" insert "for exploration or mining".
(2) In section 2(1)(c) of the Principal Act—
(a) after "mining" insert "or extraction";
(b) after "mineral resources" insert "and stone".
(3) Section 2(2) of the Principal Act is repealed .