Sec. 0.1. The following amendments to this chapter apply as follows:
(1) The amendments made to section 6 of this chapter (before its repeal) by P.L.98-1989 apply to boating years beginning after December 31, 1989.
(2) The amendments made to section 4 of this chapter by P.L.51-1997 apply only to assessment years beginning after December 31, 1997.
(3) If a court makes a final determination that the commercial vehicle excise tax, as added by P.L.181-1999 is invalid, the amendments made to section 7 of this chapter by P.L.181-1999 are void upon the exhaustion of all appeals of the court's final determination.