The Basel Committee on Banking Supervision has published its fourth Report to G20 Leaders on progress made in the implementation of Basel III regulatory reforms. It notes substantial progress with respect to the adoption of the Basel standards by Basel Committee member jurisdictions, the harmonisation of capital regulations across member jurisdictions and the finalisation of remaining post-crisis reforms that form part of the Basel regulatory framework. However, Stefan Ingves, Chairman of the Basel Committee and Governor of Sveriges Riksbank notes that there is more to do, for instance with regard to risk weights, where excessive variation across banks has been identified.