‹ CA-1.6.6 CA-2.1 Introduction › CA-2 The capital requirement CA-2.1 Introduction CA-2.1.1 CA-2.1.2 CA-2.2 Definition of capital Tier 1: Core capital Tier 2: Supplementary capital Deduction from tiers 1 and 2 capital Tier 3: Trading book ancillary capital CA-2.3 Limits on the use of different forms of capital Tier 1: Core capital Tier 2: Supplementary capital Tier 3: Ancillary capital CA-2.4 Calculation of the capital ratio CA-2.4.1 CA-2.4.2 CA-2.4.3 CA-2.4.4 CA-2.5 Minimum capital ratio requirement Banking group Individual bank Maintaining minimum RAR ‹ CA-1.6.6 CA-2.1 Introduction ›