Notes:

October 2018 update: The Law on Public Sector Contracts introduces mechanisms to improve transparency in public procurement as a prerequisite to increase competition, assuming that trace-ability and transparency in decision-making is essential for an efficient operation of procedures, including effective fight against corruption and fraud. Law 9/2017, of November 8, on Contracts of the Public Sector, by which the Directives of the European Parliament and of the Council 2014/23 / EU and 2014/24 / EU, of February 26 are transposed into the Spanish legal system of 2014.