The spring Marijuana Business Conference and Expo will be at the Gaylord National Harbor Hotel in Washington, D.C. on May 16-19. The business crash course is scheduled for the opening day, while the MJBizCon Mixer will be May 17. The spring event also features new networking opportunities, three days of educational tracks, roundtables and seminars, and access to a variety of exhibitors. While the fall Marijuana Business Conference is held annually in Las Vegas, the spring show moves around the country. In previous years, it has been in Chicago and Orlando, Florida.