This is the section of the Michigan constitution - the Michigan house does not have a 2/3 majority

§ 27 Laws, effective date.
Sec. 27. No act shall take effect until the expiration of 90 days from the end of the session
at which it was passed, but the legislature may give immediate effect to acts by a two-thirds
vote of the members elected to and serving in each house.
History: Const. 1963, Art. IV, §27, Eff. Jan. 1, 1964.
Constitutionality: A law proposed by initiative petition which is enacted by the Legislature without change or amendment within
forty days of its reception takes effect ninety days after the end of the session in which it was enacted unless two-thirds of the members of each
house of the Legislature vote to give it immediate effect. Frey v. Department of Management and Budget, 429 Mich. 315, 414 N.W.2d 873 [[1987).
Former Constitution: See Const. 1908, Art. V, §21.