I-502 refers to the 2012 Washington Initiative 502 to the Washington State Legislature on marijuana reform. Washington voters passed I-502 which legalized small amounts of marijuana-related products for adults 21 and over. Learn more about marijuana, sometimes referred to as cannabis, bud, pot, weed or 420, in Washington State on the Washington State Liquor and Cannabis Board FAQs on Marijuana web page. Visit our Cannabis Banking page to learn more about banking services for cannabis businesses.