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Michigan could become the first state in the Midwest to legalize marijuana. A pot legalization initiative will be on Nov. 6 ballots.

The Board of State Canvassers' ruling Thursday means the measure now goes to the Republican-led Legislature, where senators and representatives could enact a law or let voters decide in seven months, Fox 2 reports.

Republicans fear the ballot measure might boost turnout by liberal-leaning voters.

If passed, the law would regulate pot for adults 21 years and older. Use in a vehicle or driving while high wouldn't be allowed.

The proposal would let people possess up to 2.5 ounces (71 grams) of marijuana and grow up to 12 plants at home. A 10-percent tax on marijuana would be assessed, in addition to the 6-percent state sales tax.

"Michigan voters will finally get the chance to eliminate Michigan’s outdated marijuana laws," says a statement from John Truscott, representing a coalition of legal reform advocates. "Just like with alcohol, it is clear that prohibition doesn’t work and that regulation and taxation is a far better solution."