If this Act makes provision in relation to a matter and provision is also made in relation to that matter by, or under, the Dangerous Goods Act 1985 , the Environment Protection Act 1970 , the Occupational Health and Safety Act 2004 or the Water Act 1989 , the provision made by this Act—
(a) if not inconsistent with that other provision, must be observed in addition to that other provision; and
(b) if inconsistent with that other provision, is, to the extent of the inconsistency, of no force or effect and that other provision prevails.