Document ID: chunk:federal_register_of_legislation:C2024C00828:section:33
Version: federal_register_of_legislation:C2024C00828
Segment Type: section
Provision Reference: s 33
Character Range: 162020–164105

33  Graticulation of Earth's surface and constitution of blocks

Graticular sections
 (1) For the purposes of this Act, the surface of the Earth is taken to be divided:
 (a) by the meridian of Greenwich and by meridians that are at an angular 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 an angular distance from the equator of 5 minutes, or a multiple of 5 minutes, of latitude;
into sections called graticular sections, each of which is bounded:
 (c) by portions of 2 of those meridians that are at an angular distance from each other of 5 minutes of longitude; and
 (d) by portions of 2 of those parallels of latitude that are at an angular distance from each other of 5 minutes of latitude.

Simplified map
 (2) This subsection sets out a simplified map illustrating graticular sections off the coast of Western Australia in the vicinity of Barrow Island:

Blocks
 (3) For the purposes of this Act:
 (a) a graticular section that is wholly within an offshore 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 offshore area, the area of that part, or of those parts, constitutes a block.
Note 1: See also section 282 (certain portions of blocks to be blocks).
Note 2: See also section 461A (certain State/Territory blocks to be blocks).
Note 3: See also section 462 (certain portions of blocks to be blocks).

Block that is constituted by a graticular section
 (4) A reference in this Act 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.

Graticular section that constitutes a block
 (5) A reference in this Act to a graticular section that constitutes a block includes a reference to:
 (a) a graticular section only part of which constitutes a block; or
 (b) a graticular section only parts of which constitute a block.
Note: For datum, see section 39.