Twenty-eight banks will be subject to additional loss-absorbency requirements under rules proposed by the Basel Committee to assess global systemically important banks (GSIBs).

In a consultative document published on Tuesday, the Basel Committee outlined its proposed methodology to measure the systemic importance of banks, the magnitude of additional loss absorbency they should have and the arrangements by which they will be phased in. Under the methodology, 28 banks out of a sample of 73