"Deep Feature" of the relationship between (now superseded by later versions like ISBP 745 and 821) is their synergistic duality : UCP 600 provides the mandatory legal rules , while ISBP 681 provides the interpretive application of those rules for document examination. ICC Academy 1. Hierarchy of Application UCP 600 (The Rulebook)
This guide outlines the relationship between the , two foundational pillars of international trade finance ucp 600 and isbp 681pdf