As decriminalization of marijuana becomes reality, supporters and observers are beginning to calculate dates. Maryland is easy. By law decrim kicks in on October 1, 2014. DC, as usual, is more complicated. The DC decriminalization bill passed the D.C. Council and was signed by the Mayor, and then transmitted to Congress. Congress has 60 session days to review or veto the law. That 60 day period is estimated to expire on July 2. Stay tuned.