Bank supervision - capital adequacy.
Capital securities are securities issued by a regulated institution, which are eligible for inclusion in its capital, for capital adequacy assessment purposes.
Both the quality and the quantity of capital required have been increased very significantly over time.
Eligible capital securities include perpetual subordinated capital securities and contingent convertible capital securities.
Capital instruments which will no longer qualify, but which used to be eligible in the past, are being phased out over a 10-year horizon from 2013 to 2022.