Single-window system Single-window system The single-window system is a trade facilitation idea. As such, the implementation of a single window system enables international (cross-border) traders to submit regulatory documents at a single location and/or single entity. Such documents are typically customs declarations, applications for import/export permits, and other supporting documents such as certificates of origin and trading invoices. The main value proposition for having a single window for a country or economy is to increase the efficiency through time and cost savings for traders in their dealings with government authorities for obtaining the relevant clearance and permit(s) for moving cargoes across national
Single-wing formation all levels of modern football. They include pulling guards, double teams, play action passes, laterals, wedge blocking, trap blocking, the sweep, the reverse and the quick kick. Many current offenses, such as the spread option, use single-wing tendencies for running plays, while using wide receivers instead of wingbacks. Once a strong running formation, the single wing has been replaced by formations that facilitate passing, while minimizing the running aspect of the game. Today the single-wing has evolved into what coaches call the spread offense or shotgun, with the emphasis on passing. The most noticeable feature that remains of the powerful