The list of deposit-taking entities subject to the new rules on liquidity from 2015 is something that regulators and the industry need to confirm during consultations over the next year or two.In their joint announcement on Friday, the Australian Prudential Regulation Authority and the Reserve Bank of Australia referred to "around 40" ADIs being subject to the more stringent tests.Some building societies and credit unions might be subject to the test, especially if some in this sector achieve faster rates of growth (as present industry plans and Australian Government policy propose).Of the 56 ADIs registered as banks with APRA, 11 - all foreign-owned - have assets of less than one billion dollars. Another 10 have assets of less than A$4 billion (and once again all are foreign-owned).Five building societies and credit unions have assets of more than $4 billion, Credit Union Australia, Heritage, Newcastle Permanent, Australian Central and Greater.Chris Whitehead, chief executive of Credit Union Australia, wrote in an email that "2015 is a long way out and if we achieve our growth ambitions it would be reasonable to expect that CUA would have progressed to operating under the Liquidity Coverage Ratio by then."He noted that at present CUA operates under the minimum liquid holdings regime.Whitehead wrote that the planned capital rule, in general, is "unlikely to significantly affect credit unions because as mutuals we are currently operating with retained earnings making up the significant proportion of total capital and this is all core tier-one capital. "Mutuals generally have not issued innovative capital instruments that are likely to be reclassified with the capital rules or be disqualified. Capital ratios for mutuals are also generally higher than for the banks and our operations are more vanilla, thus any minimum capital requirements for either tier-one or total capital are likely to already be well covered."