Backers of the law gathered near Congress holding green balloons, Jamican flags in homage to Bob Marley and a sigh saying: "Cultivating freedom, Uruguay grows." Cannabis consumers will be able to buy a maximum of 40 grammes each month from licensed pharmacies as long as they are Uruguayan residents over the age of 18 and registered on a government database that will monitor their monthly purchases. When the law is implemented in 120 days, Uruguayans will be able to grow six marijuana plants in their homes a year, or as much as 480 grammes, and form smoking clubs of 15 to 45 members that can grow up to 99 plants per year. Registered drug users should be able to start buying marijuana over the counter from licensed pharmacies in Aprill.