You cannot recalculate the effective life of a depreciating asset for which:
(a) you were using, just before 1 July 2001, a rate under subsection 42 - 160(1) or 42 - 165(1) of the former Act; or
(b) you would have been using such a rate if you had used the asset, or had it installed ready for use, for the purpose of producing assessable income before that day.