Under this Act, a regional authority—
(a) performs the functions of a building consent authority set out in section 12 to the extent that those functions relate to dams (including the issue of building consents subject to a waiver or modification of the building code); and
(b) considers and approves dam classifications; and
(c) considers and approves dam safety assurance programmes; and
(d) administers the provisions of this Act relating to—
(i) dam classifications; and
(ii) dam safety assurance programmes; and
(iii) dam compliance certificates; and
(e) enforces the provisions of the building code and this Act and regulations that relate to dams; and
(f) adopts a policy on dangerous dams; and
(g) carries out any other functions and duties specified in this Act; and
(h) carries out any functions that are incidental and related to, or consequential upon, the functions set out in paragraphs (a) to (g).