The industry has been growing in Colorado since medicinal marijuana dispensaries were legalized in 2000.
OAK PARK, Mich. (AP) -- Supporters of marijuana decriminalization are submitting petitions to place the issue before voters in two northern Detroit suburbs.
MLive.com says that the group Safer Michigan turned in petitions with 1,600 signatures to the Oak Park city clerk's office. The city says 1,100 valid signatures are needed to put the issue on the Aug. 5 primary ballot.
The proposal would let anyone 21 or older possess and transport up to one ounce of marijuana for personal use.
The group says it also was submitting petitions Tuesday for a marijuana decriminalization proposal in Hazel Park.
Organizers have said they were targeting 11 Michigan cities and Benzie County for decriminalization proposals this year.
Last year, voters in Ferndale, Jackson and Lansing approved such proposals.