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This paper presents Asian Single Window background and evolution; a description of what we mean by national versus regional single window; an update on Member States’ National Single Window (NSW) status; an overview of Asian Single Window (ASW) technical, legal aspects; an assessment of institutional and technical aspects of the Asian Single Window work; potential benefits from the cross-border exchange of data using the Asian Single Window; incremental benefits from Asian Single Window; challenges to Asian Single Window implementation; and conclusions. This discussion will inform policymakers, researchers, and other countries and governments who are considering implementing similar cross-border data exchange arrangements.

This Working Paper presents Asian Single Window background and evolution; a description of what we mean by national versus regional single window; an update on Member States’ National Single Window (NSW) status; an overview of Asian Single Window (ASW) technical, legal aspects; an assessment of institutional and technical aspects of the Asian Single Window work; potential benefits from the crossborder exchange of data using the Asian Single Window; incremental benefits from Asian Single Window; challenges to Asian Single Window implementation; and conclusions. This discussion will inform policymakers, researchers, and other countries and governments who are considering implementing similar cross-border data exchange arrangements.

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