371. Competent authorities should determine the TSCR as the sum of:
a. the own funds requirement pursuant to Article 92 of Regulation (EU) 575/2013; and
b. the sum of the additional own funds requirements (determined in accordance with the criteria specified above) and any additional own funds determined to be necessary to cover material inter-risk concentrations.
372. Competent authorities should set a composition requirement for the additional own funds requirements to cover the following risk types of at least 56% Common Equity Tier 1 (CET1) and at least 75% Tier 1 (T1):
a. elements of credit, market and operational risk (not covered by Regulation (EU) 575/2013);
b. credit concentration risk and IRRBB;
c. the risk from model deficiencies that are likely to lead to underestimation of the appropriate level of own funds, where additional own funds requirements are used to cover this risk.
373. Competent authorities should determine the composition of additional own funds to cover other
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