Colegio Oficial de Graduados en Ingeniería e Ingenieros Técnicos Industriales de Aragón (COGITIAR): Professional associations are entities that bring together groups of different professions, with the aim of establishing a series of common services for their members, controlling ethical practice in the exercise of the profession and, among other functions The Official Associations of Industrial Technical Engineers are Public Law Corporations of a Professional nature, recognised by the State, with full legal personality for the fulfilment of their aims and governed by their Statutes.