Bitcoin transactions in France will become less anonymous as regulators there will enforce rules that require entities that distribute the crypto-currency to confirm the identity of accountholders. 

French regulators created the new law in response to a recent money laundering report from a government division that tracks such issues. The law will take effect at the end of 2014. 

France also changed its tax rules regarding Bitcoin sales. Profits on such transactions are now subject to capital gains taxes. The U.S. and U.K. have made similar regulations.