• “(3A) A territorial authority that is registered under section 191 must, until the time specified in subsection (3B), act as a building consent authority in relation to a dam within the territorial authority's district.

• “(3B) The time is the earlier of the following:

  • “(a) the close of the day before the date specified in subsection (3)(b)(ii); and

  • “(b) the time at which the regional authority whose region includes the territorial authority's district—

    • “(i) is registered under section 191; or

    • “(ii) transfers its functions as a building consent authority in relation to dams in that district to another regional authority, under subpart 4 of Part 3 of this Act or subpart 2 of Part 3 of the Local Government Act 2002.

• “(3C) If a territorial authority acts as a building consent authority under subsection (1) or (3A),—

  • “(a) the territorial authority must be taken to have all the functions, duties, and powers of a building consent authority under this Act; and

  • “(b) this Act applies with all necessary modifications.

• “(3D) The Governor-General may, by Order in Council, before the date specified in subsection (3)(b)(ii), specify a later date in substitution for that date.

• “(3E) An order under subsection (3D) is a regulation for the purposes of the Regulations (Disallowance) Act 1989.”