Uruguay’s President Jose Mujica has quietly signed into law the government’s plan to create a regulated, legal market for marijuana, his spokesman says.

Presidential secretary Diego Canepa told The Associated Press on Tuesday that Mujica signed the legislation Monday night. That was the last formal step for the law to take effect.

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Bureaucrats now have until April 9 to write the fine print for regulating every aspect of the marijuana market, from growing to selling in a network of pharmacies.

They hope to have the whole system in place by the middle of next year. But as of Tuesday, growing pot at home is legal in Uruguay, up to six plants per family and an annual harvest of 480 grams.