The purpose of the project is to develop a recommendation and guidelines for designing and implementing an approach to “Systematically Important Single Window Systems (SISWS)” SISWS are systems which have the characteristic that a failure of these could potentially endanger the operation of the whole economy of country as trade facilitation measures put in place would / may be unable to function.  The project will endeavour to provide a basis for designing strategies, identifying strengths and weakness and enhancing policies related to strengthening the resilience of Single Window and associated systems.