<Li> 2012: Massachusetts legalized medical cannabis . (Massachusetts Medical Marijuana Initiative) </Li> <P> Recreational legalization begins - 2012 </P> <Ul> <Li> 2012: Colorado and Washington legalized recreational marijuana for adults 21 years of age or older . </Li> <Li> 2014: Maryland decriminalized cannabis . Minnesota and New York legalized medical cannabis . </Li> <Li> 2014: Utah legalizes CBD oil, becoming the first state to legalize a cannabis - based medicine without legalizing medical cannabis entirely . </Li> <Li> 2014: Oklahoma legalizes trials of CBD oil . </Li> <Li> 2014: Alaska and Oregon legalized recreational cannabis . Alaska's law took effect on February 25, 2015 . Oregon's initiative began on July 1, 2015 . </Li> <Li> 2015: Georgia, North Carolina, and Texas legalized CBD oil . </Li> <Li> 2015: Louisiana legalized medical cannabis . </Li> <Li> 2015: Delaware decriminalized cannabis . </Li> <Li> 2016: Ohio and Pennsylvania legalized medical cannabis via state legislature . </Li> <Li> 2016: Illinois decriminalized cannabis . </Li> <Li> 2016: California, Nevada, Maine and Massachusetts legalized recreational cannabis via ballot initiative . </Li> <Li> 2016: Florida, North Dakota, and Arkansas legalized medical cannabis via ballot initiative . </Li> <Li> 2017: Vermont becomes first state to pass recreational cannabis bill entirely through elected legislature on May 10, 2017 (see cannabis in Vermont). </Li> <Li> 2017: New Hampshire decriminalized cannabis . </Li> <Li> 2017: West Virginia legalized medical cannabis . </Li> </Ul> <Li> 2012: Colorado and Washington legalized recreational marijuana for adults 21 years of age or older . </Li>

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