Local Government Act 1993 No 30
Current version for 14 May 2020 to date (accessed 28 May 2020 at 02:14)
Chapter 15 Part 3 Section 529
529   Rate may be the same or different within a category
(1)  Before making an ordinary rate, a council may determine a sub-category or sub-categories for one or more categories of rateable land in its area.
(2)  A sub-category may be determined—
(a)  for the category “farmland”—according to the intensity of land use, the irrigability of the land or economic factors affecting the land, or
(b)  for the category “residential”—according to whether the land is rural residential land or is within a centre of population, or
(c)  for the category “mining”—according to the kind of mining involved, or
(d)  for the category “business”—according to a centre of activity.
 In relation to the category “business”, a centre of activity might comprise a business centre, an industrial estate or some other concentration of like activities.
(3)  The ad valorem amount (the amount in the dollar) of the ordinary rate may be the same for all land within a category or it may be different for different sub-categories.
(4)  Land may be taken to be irrigable for the purposes of subsection (2)(a) if, and only if, it is the subject of a water right within the meaning of the Valuation of Land Act 1916.