Twenty-three states and the District of Columbia currently have laws legalizing marijuana in some form, including four states that allow for recreational use. In Alaska, adults 21 or older can now transport, buy or possess up to an ounce of marijuana and grow up to six plants.
Colorado and Washington were the first two states to allow for legalized recreational marijuana thanks to ballot measures passed in 2012.
The District of Columbia became the most recent jurisdiction to join the trend; its voter-approved measure took effect in February, legalizing possession of small amounts of marijuana.
Oregon voters approved a similar measure last fall, which will take effect on July 1, allowing adults to possess up to an ounce of marijuana in public and eight ounces in their homes.
Many other states have passed medical marijuana laws allowing for limited use of cannabis for medical treatment, with possession limits and eligible medical conditions varying from state to state. Read More