This report explores how the central securities depository and real-time gross settlement (CSD-RTGS) linkage model could be applied to collective investment scheme (CIS) passporting frameworks in Asia to enhance post-trade efficiency. In Asia, there are a number of multilateral CIS passporting frameworks, but little attention has been given to how delivery versus payment settlements can be facilitated under such frameworks. The report finds that the CSD-RTGS linkage model has considerable potential to be applied in Asia as a settlement engine for other cross-border financial instruments. It outlines how this can be achieved by interlinking the region's CIS central platforms and delivery versus payment settlements infrastructure under the CSD-RTGS model.