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
History and use of the single transferable vote constituencies, while local elections currently use constituencies of between five and seven seats. For European elections Northern Ireland serves as a single three-seat constituency. Local elections in Scotland use constituencies of three or four seats. All official STV elections in the UK use the Gregory method of counting votes. STV is also used by many private organisations. For example, it is used in many British university students' unions (and promoted by the National Union of Students as the fairest way of running elections), for all elections within the University of Cambridge and for electing board members in The Co-operative Group.