Michigan Compiled Laws, Chapter 205. Taxation § 205.223

(a) Sections 1 through 22  1 apply only to the estate of a resident or nonresident decedent dying before October 1, 1993 or to a generation-skipping transfer that occurs after December 31, 1992 but before October 1, 1993.

(b) Sections 31 to 56  2 apply only to the estate of a resident or nonresident decedent dying after September 30, 1993 or to a generation-skipping transfer that occurs after September 30, 1993.