(1) Water charge rules apply to a regulated water charge if one or more of the paragraphs in subsection (2) or (3) are satisfied.
(2) This subsection applies if:
(a) the person imposing the charge, or making the demand, is a constitutional corporation; or
(b) the person on whom the charge is imposed, or from whom the charge is demanded, is a constitutional corporation; or
(c) the charge is imposed, or payment of the charge is demanded, in the course of trade and commerce between the States or between a State and a Territory; or
(d) the person who imposes, or demands payment of, the charge does so in a Territory; or
(e) the charge relates to:
(i) a water resource in a Territory; or
(ii) water service infrastructure in a Territory; or
(iii) tradeable water rights in relation to a water resource in a Territory; or
(f) the charge is imposed, or payment of the charge is demanded, using a postal, telegraphic, telephonic or other like service (within the meaning of paragraph 51(v) of the Constitution).
(3) This subsection applies if:
(a) the person imposing, or demanding payment of, the charge does so in a referring State; or
(b) the imposition, or the demand for payment of, the charge has an effect in a referring State; or
(c) the charge relates to:
(i) a water resource in a referring State; or
(ii) water service infrastructure in a referring State; or
(iii) tradeable water rights in relation to a water resource in a referring State.
(4) Subsections (2) and (3) (and the paragraphs of each of those subsections):
(a) have effect independently of each other; and
(b) do not limit the operation (if any) that the water charge rules validly have apart from this section.