Mexico Passes Bill To Legalise Cannabis Please Wait .. KEY TAKEAWAYS The lower House of Congress in Mexico approved a bill to decriminalise the use of cannabis for recreational, medical and scientific uses. Such bill received 316 votes in its favour and 127 votes against. Andrés Manuel Lopez Obrador, the President of Mexico, is in favour of the said bill. The bill is awaiting review and approval from the Senate, after which it would become a law. People of the age of 18 years and older, are allowed to grow, carry or consume marijuana and its derivatives. Five types of licenses for the cultivation, transformation, sale, research and export or import of cannabis is enlisted in the bill.