Mich. Comp. Laws § 209.4a

Sec. 4a. Notwithstanding section 4, for 1992 the valuation as equalized for each separately equalized classification of property for each county that would otherwise have been determined under section 4 shall equal the 1991 valuation as equalized except as adjusted to reflect the changes to valuation as equalized allowed under section 10 of the general property tax act, Act No. 206 of the Public Acts of 1893, being section 211.10 of the Michigan Compiled Laws.