An installation is a structure that:
(a) is able:
(i) to float or to be floated; and
(ii) to move, or to be moved, as an entity from one place to another; and
(b) is, or is to be, used wholly or principally in:
(i) exploring or exploiting natural resources (such as fish or minerals) with equipment on, or forming part of, the structure; or
(ii) operations or activities associated with, or incidental to, activities of the kind referred to in subparagraph (i) of this paragraph; and
(i) is attached to, or resting on, the seabed; or
(ii) is attached semipermanently or permanently to a structure that is attached to, or resting on, the seabed.
Note: An installation is a vessel for the purposes of this Act (see paragraph (b) of the definition of vessel in section 9).