The BCBS expects full implementation of its standards by BCBS members and their internationally active banks. However, BCBS standards constitute minimum requirements and BCBS members may decide to go beyond them.”  19 The impact of this for mortgage loans, when combined with the new minimum requirements, can be seen in a  chart in the Appendix.
20 The Reserve Bank of New Zealand is not a member of the Basel Committee on Banking Supervision. 21 Basel Committee Charter, Section 12: https://www.bis.org/bcbs/charter.htm  18  The Reserve Bank has historically taken a more conservative approach to capital regulation, so it should not come as a surprise that the capital requirements we are proposing are also more conservative than internationally agreed minimums.