In recent years, considerable effort has been made to ensure that a large supply of bail-inable liabilities is in place for the largest banks. The rules for "Total Loss Absorption Capacity" (TLAC) in the US have led the eight US G-SIFIs to issue approximately $1.0 trillion of long-term holding company liabilities, which could be used for this purpose. Combined with equity and other capital securities, that establishes an aggregate TLAC of roughly $2 trillion for the eight U.S. G-SIFIs. In the UK, the Bank of England has set out the TLAC requirements for its largest banks, described as MREL, at between 25.2% and 29.3% of risk-weighted assets. Switzerland has imposed requirements on its two G-SIFIs of 28.6% of risk-weighted assets.