(1) The regulations may make provision for and in relation to giving effect to an adjustment or amendment of the Montreal Protocol, in so far as the adjustment or amendment relates to a substance other than a scheduled substance (whether that substance exists alone or in a mixture).
(2) Regulations made by virtue of subsection (1) in relation to an adjustment or amendment of the Montreal Protocol that has not entered into force for Australia must not come into operation on a date earlier than the date on which the adjustment or amendment entered into force for Australia.