1. This Regulation establishes the conditions and procedures for the entry and processing of alerts in SIS on third-country nationals and for the exchange of supplementary information and additional data for the purpose of refusing entry into and stay on the territory of the Member States.
2. This Regulation also lays down provisions on the technical architecture of SIS, on the responsibilities of the Member States and of the European Union Agency for the Operational Management of Large-Scale IT Systems in the Area of Freedom, Security and Justice (eu-LISA), on data processing, on the rights of the persons concerned and on liability.