The FSB Key Attributes of Effective Resolution Regimes for Financial Institutions require home and key host authorities of FSB-designated Global Systemically Important Financial Institutions (G-SIFIs) to maintain Crisis Management Groups (CMGs) to prepare for and manage a cross-border financial crisis affecting the firm. CMGs provide a forum for the discussion and agreement of resolution strategies plus the coordination of resolvability assessments. The membership composition of CMGs requires a balance to be struck between efficiency and inclusiveness. However, it is important that host regulators who are not part of CMGs have access to relevant information about a firm even if the market they supervise is not considered systemic for the firm. This sharing of information is especially important in instances where the failure of an institution could be systemic for the non-CMG country. This guidance sets out a way for resolution authorities and host regulators to address these concerns in order to reduce financial stability risks.