<P> Some cities also passed decriminalization laws in the 1970s, such as Ann Arbor in 1972 and Madison in 1977 . Additionally, San Francisco voters approved a non-binding measure in 1978 to effectively legalize cannabis, but mayor George Moscone was assassinated shortly afterwards and the initiative was subsequently disregarded . </P> <P> Ravin v. State was a 1975 decision by the Alaska Supreme Court that held the Alaska Constitution's right to privacy protects an adult's ability to use and possess a small amount of cannabis in the home for personal use . The Alaska Supreme Court thereby became the first--and only--state or federal court to announce a constitutional privacy right that protects some level of cannabis use and possession . This policy of effective legalization remained in place until it was overridden by a 1990 ballot initiative that recriminalized cannabis . </P> <P> In 2001, Nevada became the first state in over two decades to decriminalize cannabis . In the following years, major cities across the U.S. began to either decriminalize cannabis or make enforcement of cannabis laws the lowest priority . Among the first cities to do so were Seattle (2003), Oakland (2004), Denver (2005), and San Francisco (2006). In 2008, Massachusetts voters approved a ballot initiative to decriminalize cannabis . States that decriminalized in subsequent years were Connecticut (2011), Rhode Island (2012), Vermont (2013), Maryland (2014), Missouri (2014), Delaware (2015), Illinois (2016), and New Hampshire (2017). The U.S. Virgin Islands also decriminalized in 2014 . </P> <P> On November 6, 2012, Colorado and Washington became the first states to legalize recreational use of cannabis when voters approved Colorado Amendment 64 and Washington Initiative 502 . Each regulated cannabis in a way similar to alcohol, allowing possession of up to an ounce for adults ages 21 and older, with DUID provisions similar to those against drunk driving . Unlike Initiative 502, Amendment 64 allowed for personal cultivation of up to six plants . Both allowed for commercial cultivation and sales, subject to regulation and taxes . </P>

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