The Bulgarian National Bank (BNB) mandates the assessment of financial soundness for institutions seeking admission to Eurosystem monetary policy operations. The BNB evaluates capital, leverage, and liquidity ratios reported under Regulation (EU) No 575/2013 or comparable prudential data, requiring direct submission and potential external audit if supervisory authorities do not provide the information. Additionally, the BNB considers specific factors for institutions with public debt recapitalizations and explicitly excludes wind-down entities from accessing these operations.