# Core Concepts

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Collateral Bond Reserve (CBR)</strong></td><td><a href="core-concepts/the-three-module-cbr-ccr-slf-system">the-three-module-cbr-ccr-slf-system</a></td></tr><tr><td><strong>Cleared Collateral Receipt (CCR)</strong></td><td><a href="core-concepts/cleared-collateral-receipt-ccr">cleared-collateral-receipt-ccr</a></td></tr></tbody></table>