The Committee of European Banking Supervisors, an advisory body which is set to become a pan-European Union supervisory agency next year, published guidelines on Thursday for banks to undertake more rigorous stress tests on the risks they are taking.

The move comes as part of an effort by regulators to force banks to better estimate the losses they might take on their investments during periods of financial turmoil so they can set aside enough large enough capital pools and liquidity buffers to ensure they stay afloat.