In November 2016 California voters passed Proposition 64, the Adult Use Marijuana Act (AUMA), making California one of four states to legalize recreational marijuana in 2016. And on January 1, 2018, adult-use cannabis sales officially began.
Residents of California are now able to possess up to 28.5 grams of marijuana flower and up to 8 grams of marijuana concentrates. Residents may also grow up to six marijuana plants per residence. Recreational dispensaries are now open to any adult 21 years of age or older with a valid, government issued ID. The state was also among the first to establish meaningful medical marijuana reform with the with the passing of Proposition 215 in 1996, and, subsequently, Senate Bill 420 in 2003. It is also among the few states that does not require a person to be a resident in order to be registered into the medical marijuana program.