The FSB, in consultation with the Basel Committee on Banking Supervision (BCBS) and national authorities, has identified global systemically important banks (G-SIBs) since 2011. The list of G-SIBs is divided into ‘buckets’ corresponding to required level of additional loss absorbency.  The FSB, in consultation with the International Association of Insurance Supervisors (IAIS) and national authorities, began identifying global systemically important insurers (G-SIIs) in 2013. The public communications on G-SIBs and G-SIIs are issued annually each November. The communications provide information on the annual identification process and on the application of policy measures to G-SIBs and G-SIIs under the integrated set of policy measures to address the systemic and moral hazard risks associated with systemically important financial institutions (SIFIs) published by the FSB in 2011.

BCBS publishes the methodology for assessing and identifying G-SIBs. IAIS publishes the methodology for assessing and identifying G-SIIs.