The stability of the Comorian franc is founded on tight monetary and credit discipline, underpinned by two specific safeguard measures: the central bank is required to maintain 20% foreign-exchange cover of its sight liabilities, and the government is not allowed to draw more than 20% of the previous year's budget receipts from their central bank funds. The ministers of finance of the franc area (France, the CFA zone and Comoros) meet biannually. The agreement between France and the Comoros is essentially the same as the agreement France has with the CFA Zone. It is a continuation of a relationship of monetary cooperation between the two countries that has existed for more than a century.