Trade agreements should recognize the critical issue of interoperability between Single Window (SW) systems. This is one of the main conclusions of a new published joint report of the World Economic Forum (WEF) and the World Trade Organisation (WTO). The report notes that while many trade agreements, including the WTO’s Trade Facilitation Agreement, support the use of SW systems to expedite the movement, release and clearance of goods, only a small number of recent trade agreements address the issue of interoperability between such systems.