History: 1949, Act 300, Eff. Sept. 23, 1949
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Am. 1957, Act 281, Eff. Sept. 27, 1957
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Am. 1978, Act 507, Eff. July 1, 1979
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Am. 1979, Act 66, Eff. Aug. 1, 1979
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Am. 1980, Act 137, Imd. Eff. May 29, 1980
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Am. 1980, Act 518, Eff. Mar. 31, 1981
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Am. 1982, Act 310, Eff. Mar. 30, 1983
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Am. 1987, Act 154, Eff. Dec. 1, 1987
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Am. 1988, Act 255, Eff. Oct. 1, 1989
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Am. 1991, Act 98, Imd. Eff. Aug. 9, 1991
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Am. 2000, Act 282, Imd. Eff. July 10, 2000
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Am. 2000, Act 408, Eff. Mar. 28, 2001
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Am. 2002, Act 554, Eff. Oct. 1, 2002
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Am. 2010, Act 10, Imd. Eff. Mar. 8, 2010
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Am. 2013, Act 231, Eff. Mar. 27, 2014
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Am. 2016, Act 32, Eff. June 6, 2016
Compiler's Notes: In OAG 6480, issued November 23, 1987, the Attorney General stated: “It is my opinion, therefore, that 1987 PA 154, which fixes maximum speed limit on certain state highways, becomes effective November 29, 1987.”