While the recent US Basel Endgame proposal will affect many elements of the capital rules, it will especially impact operational risk, a new category of capital charge for most banks. Midsize and larger US banking organizations will need to develop extensive loss-event tracking and quantification systems to comply with new operational risk requirements. Smaller banking organizations, while not required to hold capital for operational risk, should consider implementing tracking systems, given the 10-year lookback requirement, and its potential applicability in acquisitions. Please join Mayer Brown partners Jeffrey Taft and Matthew Bisanz for a discussion of the proposed operational risk requirements, and the key issues that banking organizations should consider during the comment period.