(1) Sections 1 through 15 and 22 of this act are necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions. Sections 1 through 14 and 22 of this act shall take effect July 1, 1991, and section 15 of this act shall take effect immediately [May 20, 1991].

(2) Sections 16 through 21 and 23 of this act shall take effect January 1, 1993.