This paper describes the design and implementation of the Piedmont Integrated Ticketing project (BIP – Biglietto Integrato Piemonte) and its interoperability with any public service already supporting or willing to support this technology. The interoperation among different service operators will be assured by means of a single Regional Service Centre (the “CSR-BIP”) sharing data about services and customer usage with transport operators and Public Administration, by means of a standardized transfer data protocol (called BIPEx) compliant with the most up-to-date international standards. The same informative content will be used for dedicated informative services. Moreover, all services compliant to the BIP system will be accessed by users through a pure contactless smart card, with its Card Data Model, defining its content and the rules to access it. Customers will be able to change between Public Transport operators or other transport systems (i.e. car and bike sharing) and even cultural services (EDISU or PYOU Card) or regional museums, without the need to acquire a dedicated “ticket” for each. One centre, one protocol and a single smart card will enable one of the most integrated ticketing and informative service system ever.