17Graticulation of Earth’s surface and constitution of blocks

#### 17 Graticulation of Earth’s surface and constitution of blocks (1) For the purposes of this Act, the surface of the Earth shall be deemed to be divided: (a) by the meridian of Greenwich and by meridians that are at a distance from that meridian of 5 minutes, or a multiple of 5 minutes, of longitude; and (b) by the equator and by parallels of latitude that are at a distance from the equator of 5 minutes, or a multiple of 5 minutes, of latitude; into sections, each of which is bounded: (c) by portions of 2 of those meridians that are at a distance from each other of 5 minutes of longitude; and (d) by portions of 2 of those parallels of latitude that are at a distance from each other of 5 minutes of latitude. (2) For the purposes of this Act: (a) a graticular section that is wholly within an adjacent area constitutes a block; and (b) if a part only of a graticular section is, or parts only of a graticular section are, within an adjacent area, the area of that part, or of those parts, constitutes a block. (3) In this Act: (a) a reference to a block that is constituted by a graticular section includes a reference to a block that is constituted by the area of a part only, or by the areas of parts only, of a graticular section; and (b) a reference to a graticular section that constitutes a block includes a reference to a graticular section part only of which constitutes, or parts only of which constitute, a block. > Note: For datum, see section 150M.