In this Act, except in so far as the context or subject-matter otherwise indicates or requires:enrichment, in relation to nuclear material, means any process by which the proportion of an isotope is increased in relation to the natural abundance of the isotope.
mine, in relation to uranium, includes to produce uranium ore concentrates in a mill or other plant.
nuclear facility means a nuclear facility within the meaning of section 8.
nuclear fuel cycle includes any process or step in the utilisation of material capable of undergoing nuclear fission, including its ultimate disposal.
nuclear material means any radioactive substance associated with the nuclear fuel cycle, including radioactive waste material.
nuclear reactor means a device designed to produce controlled nuclear fission.
regulation means a regulation made under this Act.

Section 4