An FMI settles money in central bank money where practical and available, to avoid credit and liquidity risk. Otherwise it uses a settlement asset with little or no credit or liquidity risk. Where it settles in commercial bank money, it monitors, manages and limits exposure to its settlement banks through strict criteria covering regulation, creditworthiness, capitalisation, liquidity access and operational reliability, and manages concentration. If it settles on its own books it strictly controls its own credit and liquidity risk. Agreements with settlement banks state when transfers occur, that transfers are final when made, and that funds are transferable as soon as possible, at least by end of day.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.