The releasing of public data, also known as Open Data, consists of making public sector data available to all in standardized and open digital format. In the public sector, having access to data from the administration guarantees transparency, efficiency and equal opportunities when it comes to adding value.

The European Commission considers that public data must be reused, both by citizens and companies. This translates into greater transparency and is a driving force in the information and knowledge society, especially for the digital content sector. For this reason, favourable legislation in the form of Law 37/2007, of 16th November, on the reuse of public sector information has been introduced, supersending the European Parliament and Council's Directive 2003/98/CE.

Through the two Government agreements of 9th November 2010 and 31st June 2012, the Generalitat of Catalonia commits to promoting the use and reuse of public administration information.

Spanish Royal Decree 1495/2011 of 24th October states that all public bodies must have their own Public Sector Information Reuse plan.

Puertos del Estado (State Ports) and the Ministry of Public Administration have obtained agreement to follow these European directives and drive the reuse of port authority and state ports information, publishing a minimum of four sets of high impact and value data. In this way, the Port of Barcelona fulfils its obligations and sets the RISP plan in motion. The contents of this plan of measures can be found on the website with the Port de Barcelona Open Data Catalogue.