Uruguay has approved pioneering legislation legalising marijuana, becoming the first nation in the world to oversee the production and sale of the drug. After a 12-hour debate, 16 leftist senators out of 29 lawmakers voted Tuesday in favor of the legislation championed by President Jose Mujica, who must now sign it into law. The bill goes well beyond the marijuana legalisation measures recently approved by the US states of Colorado and Washington, or the similarly liberal laws of the Netherlands and Spain. Consumers over 18 will be able to grow their own marijuana, though no more than six plants per person. They can also get it through clubs or buy up to 40 grams per month from pharmacies. In every case, they must be registered with the government.