Real Decreto número 2528/86 de 28/11/1986, del Ministerio de Economía y Hacienda, Contratos del Estado, Modifica el Reglamento de contratación para adaptarlo al Real Decreto Legislativo número 931/86 de 02/05/1986, y a las Directivas de la Comunidad Económica Europea. Boletín Oficial del Estado número 303 de 19/12/1986

This royal decree updates Spain's national regulations governing state contracts. Its primary purpose is to align domestic procurement rules with the Spanish Legislative Royal Decree 931/86 and the prevailing directives of the European Economic Community. This affects public administration bodies and companies bidding for government contracts in Spain, ensuring that public procurement processes follow European standards of competition and transparency.