July 20 (Reuters) - Macquarie Group Ltd MQG.AX :
* APRA proposed changes to mortgage capital requirements
* Says notes APRA's release of proposed changes to the level of capital required to be held against residential mortgages
* The proposed changes do not come into effect until 1 July 2016
* Impact on MGL's APRA Basel III capital surplus would be about $A150 million (at 8.5% RWAs), equivalent to 20 basis point reduction in bank group's CET1 ratio
* Increased capital requirement for mortgages will be accommodated from the existing capital surplus and retained earnings
* Source text for Eikon ID:nASX2kKLW2