NCTS is an European wide system, based upon electronic declaration and processing, designed to provide better management and control of Community and Common Transit. It involves all countries comprising the EU Member States and all Common Transit Convention contracting countries. Based on the transit declaration, NCTS also covers the processing of safety and security data at entry and at the exit.. The "All as One" strategy adopted by the National Administrations (NA) aims to maintain the seamless "one system" and "end-to-end" experience for transit movements facilitated by a combined declaration. This approach will be implemented through a fair distribution of responsibilities between Opt-in and Opt-out National Administrations.