A multilateral committee on banking regulations has proposed that international banks in major industrial nations disclose capital adequacy ratios every three months, banking sources said.

The Basel Committee on Banking Supervision, based at the Bank for International Settlements in Basel, Switzerland, also wants banks to set aside additional capital to prepare for any internal risk arising from illegal transactions, the sources said.

The committee, which groups central bankers and financial regulators from major industrial nations, believes it is imperative for big international banks to ensure the integrity of the banking business and thus disclose accurate, up-to-date information on their capital adequacy ratios, they said.