Marijuana for medicinal use became legal in Utah in 2018, when voters approved Proposition 2 to pass The Utah Medical Cannabis Act (HB3001). State lawmakers made immediate changes to the rules that voters approved, passing an amended version of HB3001.
The amendments to the bill limited the forms of available marijuana (specifically removing most edible forms and dried flower for combustion), reduced the number of dispensary licenses allowed, and banned home cultivation. This move overrode the voter-approved regulations, and was signed into law by Governor Gary Herbert, taking effect immediately. Recreational cannabis is illegal in Utah.