(1) Section 22 applies
only if the designing of the plant, substance or structure referred to in
section 22(1)(a), (b) or (c) is started on or after commencement day.
(2) Despite subsection
(1), if the designing is started before commencement day, but is not completed
before the 2 nd anniversary of commencement day, section 22 —
(a)
applies on and after that anniversary; and
(b) is
taken always to have applied as if the designing had been started on or after
commencement day.